Thursday

April 17, 2014

April 17, 2014

Number of results: 98,777

**Physics**

Two long, straight, parallel wires carry current in the same direction. If the wires are 24 cm apart and carry currents of 2.0 A and 4.0 A, respectively, find the force per unit length on each wire?
*Thursday, December 13, 2012 at 10:02pm by Lorii*

**physics**

Two long, straight, parallel wires 10 cm apart carry currents in opposite directions. (a) Use the right-hand source and force rules to determine whether the forces on the wires are (1) attractive or (2) repulsive. Show your reasoning. (b) If the wires carry equal currents of 3...
*Thursday, August 15, 2013 at 9:18am by john*

**physics**

Two long straight wires are parallel and 9.0 cm apart. They are to carry equal currents such that the magnetic field at a point halfway between them has magnitude 320 µT. (a) Should the currents be in the same or opposite directions? opposite (b) How much current is needed?
*Tuesday, February 9, 2010 at 5:24pm by Anonymous*

**Physics**

Two long, straight, parallel wires carry current in the same direction. If the wires are 24 cm apart and carry currents of 2.0 A and 4.0 A, respectively, find the force per unit length on each wire? I'm not really sure how to go about this. I must be spacing or something.
*Thursday, December 13, 2012 at 8:53pm by Lorii*

**College Physics**

Two long, straight, parallel wires 8.0 cm apart carry currents in opposite directions. Use the right-hand source and force rules to determine whether the forces on the wires are attractive or repulsive. a)Repulsive b)Attractive If the wires carry equal currents of 4.0 A, what ...
*Friday, February 19, 2010 at 6:29pm by Lanise*

**PHYSISC**

Two parallel, straight wires that are very long are separated by a distance of 0.065 m and carry currents of I1 =15 A and I2 =7.0A. Find the magnitude and direction of the force that the magnetic field of wire 1 applies to a 1.5-m section of wire 2 when the currents have ...
*Saturday, September 3, 2011 at 1:48am by KAIT*

**College Physics**

Two long, parallel wires separated by 50 cm each carry currents of 3.0 A in a horizontal direction. Find the magnetic field midway between the wires if the currents are in the same direction. B= T Find if they are in opposite directions. B= T
*Friday, February 19, 2010 at 5:59pm by Lanise*

**physics**

Two 10 meter long wires are parallel to each other and 5 cm apart.They carry currents of 6.0 A in opposite directions. What is the magnitude and direction of the magnetic field at a point P,halfway between the wires? Calculate the force exerted by the left wire on the right ...
*Sunday, May 24, 2009 at 6:39am by Sandhya*

**Physics**

Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a currentTwo thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a currentTwo thin, infinitely long, parallel wires are lying on ...
*Thursday, December 12, 2013 at 8:27am by Anon*

**Physics**

Two very long, straight, parallel wires separated by distance d carry currents of magnitude I in opposite directions. Find the magnetic field at a point equidistant from the lines, with a distance 2d from each line.
*Sunday, March 28, 2010 at 12:42pm by Lee*

**GENERAL PHYSICS**

Two long, parallel wires separated by 90 each carry currents of 2.0 in a horizontal direction.
*Sunday, November 15, 2009 at 7:59pm by shamille*

**physics**

Two long parallel wires carry currents of 10 A in opposite directions. they are separated by 40 cm. what is the magnetic field in the plane of the wires that is 20 cm from one wire and 60 cm from the other?
*Monday, May 24, 2010 at 8:20pm by manisha*

**College Physics**

Two long, parallel wires separated by 30 cm each carry currents of 4.0 A in a horizontal direction. B)Find if they are in opposite directions.
*Tuesday, February 23, 2010 at 4:41pm by Aweis Mahamud*

**Physics**

Two long parallel wires separated by a distance, d, carry currents in opposite directions. If the left-hand wire carries a current i/2, and the right-hand wires carries a current i, determine where the magnetic field is zero.
*Thursday, October 20, 2011 at 10:55pm by Jessica*

**Physics**

Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is
*Monday, April 25, 2011 at 6:42pm by asif*

**Physics**

Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is
*Monday, April 25, 2011 at 6:44pm by asif*

**Physics**

Two parallel, uniformly charged, infinitely long wires carry opposite charges with a linear charge density ? = 5 £gC/m and are 8 cm apart. What is the magnitude and direction of the electric field at a point midway between them and 49 cm above the plane containing the two ...
*Friday, February 17, 2012 at 2:27pm by Long*

**k**

Two wires parallel to each other and seperated by a distance d carry different currents; they exert a force with magnitude F on each other. (a) The wires carry current in opposite directions. If the current carried by both wires is divided by five and the distance between the ...
*Monday, April 15, 2013 at 1:44pm by physics*

**physics please help??**

I know how to do this problem, but I am having a difficult time figuring out the distance . I thought that from wire 1 to P2 the distance is 45 cm, and the distance from wire 2 to the p2 the distance is 35 cm. However, I believe I am wrong, can someone please explain o me ...
*Saturday, October 27, 2012 at 3:46pm by henry*

**physics**

The figure below shows two current carrying wires and the directions of the currents they carry. The wires carry the following currents: I1 = 12.5 A and I2 = 9.8 A. Wire 1 is at (0, 4.0) mm; wire 2 is at (13.3, 0) mm; point P is at (13.3, 4.0) mm. webassign. net/userimages/...
*Wednesday, April 10, 2013 at 11:31am by k*

**physics**

Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other wire? Unot=...
*Saturday, March 30, 2013 at 9:01am by rohit*

**Physics/math**

Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other wire? Unot=...
*Monday, March 25, 2013 at 10:34am by Jack*

**Physics/math**

Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other wire? Unot ...
*Monday, March 25, 2013 at 10:31am by Jack*

**Physics**

Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other wire? Details...
*Wednesday, March 27, 2013 at 7:56am by Gurudev*

**Physics**

Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other wire? Details...
*Wednesday, March 27, 2013 at 11:41am by Steve*

**physics**

Two long, straight wires are separated by 0.12 m. The wires carry currents of 8.0 A in opposite directions, as the drawing indicates. (a) Find the magnitude of the net magnetic field at the point A. ___T (b) Find the magnitude of the net magnetic field at the point B. ___T
*Tuesday, September 21, 2010 at 1:30am by Anonymous*

**physics**

Two very long, straight, parallel wires carry currents that are directed perpendicular. Wire 1 carries a current I1 into the page (in the -z direction) and passes through the x axis at x = +a. Wire 2 passes through the x axis at x = -2a and carries an unknown current I2. The ...
*Saturday, April 9, 2011 at 11:46am by Rachel*

**physics**

Two parallel wires in a horizontal plane carry currents I1 and I2 to the right. The wires each have a length L and are separated by a distance d. calculate the following where: I1 = 10A, I2 = 20A, d = 5mm, and L = 2m. What are the magnitude and direction of the B-field of wire...
*Thursday, October 14, 2010 at 1:16pm by Anonymous*

**Physics**

Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other? (b) At a point far away from the wires, do their individual fields tend to ...
*Tuesday, April 17, 2012 at 4:28pm by Brittany*

**Physics (Urgent Please!)**

Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other? (b) At a point far away from the wires, do their individual fields tend to ...
*Tuesday, April 17, 2012 at 7:22pm by Marie*

**physics**

Two parallel straight conductors 5 m long and 12 cm apart are to have equal currents. The force each conductor experiences from the other is not to exceed 2x10^-2 N. What is the maximum possible current in each conductor? I'm getting a ridiculous answer of 1200 A. I'm doing ...
*Monday, April 27, 2009 at 10:01pm by Sam*

**Physics**

Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current Io=200A going into the page. A third thin, infinitely long wire with mass per unit length λ=5g/m carries current I going out of the page. What is the value of ...
*Thursday, December 12, 2013 at 8:27am by roami*

**Physics**

Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current Io=200A going into the page. A third thin, infinitely long wire with mass per unit length λ=5g/m carries current I going out of the page. What is the value of ...
*Thursday, December 12, 2013 at 8:28am by Anonymous*

**PHYSICS**

Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current I_0=200A going into the page. A third thin, infinitely long wire with mass per unit length lambda=5g/m carries current I going out of the page. What is the value of ...
*Sunday, December 15, 2013 at 5:35pm by Lora*

**Physics**

Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current I_0=200A going into the page. A third thin, infinitely long wire with mass per unit length lambda=5g/m carries current I going out of the page. What is the value of ...
*Monday, December 16, 2013 at 1:21am by Lora*

**Physical Science**

Two parallel transmission wires are laid between electrical towers. The distance between towers is 200 m, while the separation between the parallel wires is only 2.5 m. If the wires carry each a current of 1000 A, the magnitude of the force between the wires is closest to ... ...
*Wednesday, March 10, 2010 at 10:12pm by Stephanie*

**Physics**

nobody did it?? Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current Io=200A going into the page. A third thin, infinitely long wire with mass per unit length λ=5g/m carries current I going out of the page. What is...
*Thursday, December 12, 2013 at 8:29am by CUr*

**electricity**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?
*Saturday, November 30, 2013 at 1:13am by Collin*

**physics**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?
*Sunday, December 1, 2013 at 3:15pm by Collin*

**Physics please help**

Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended by 0.50m long strings...If the suspension strings make an angle of 3.0 degree with the vertical, what is the current in the wires? please help out I...
*Monday, February 25, 2013 at 1:13am by John*

**Physics please help**

Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended by 0.50m long strings...If the suspension strings make an angle of 3.0 degree with the vertical, what is the current in the wires? please help out I...
*Monday, February 25, 2013 at 2:50pm by John*

**PLEASE COULD SOMEONE HELP ME OUT**

Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended by 0.50m long strings...If the suspension strings make an angle of 3.0 degree with the vertical, what is the current in the wires? Thank you......
*Monday, February 25, 2013 at 5:50pm by John*

**Physics (urgent please)**

Two parallel wires are carrying 5A and are separated by 2.0 m. if the currents are in opposite directions, what is the magnitude of the magnetic field halfway between them? Someone please help as I can't figure out the question. Thanks, They are asking for the field between ...
*Wednesday, June 20, 2007 at 12:58pm by James P.*

**Physics**

hai any one got the ans of this Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current Io=200A going into the page. A third thin, infinitely long wire with mass per unit length λ=5g/m carries current I going out of ...
*Thursday, December 12, 2013 at 8:29am by mandela *

**Physics**

yup @flO That's correct ! so did u done for this question Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current Io=200A going into the page. A third thin, infinitely long wire with mass per unit length λ=5g/m ...
*Thursday, December 12, 2013 at 8:29am by mandela *

**physics **

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?
*Saturday, November 30, 2013 at 11:55am by LH need help please*

**magnetism**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?
*Friday, November 29, 2013 at 7:09am by anton URGENT Please*

**Physics - Verification**

Two long straight parallel wires separated by a distance of 20 cm carry currents of 30 A and 40 A in opposite directions. What is the magnitude of the resulting magnetic field at a point that is 15 cm from the wire carrying the 30-A current and 25 cm from the other wire? So I ...
*Sunday, August 12, 2012 at 11:12pm by Robert*

**physics**

Parallel wires, a distance D = 20.6 cm apart, carry a current, i = 3.67 A, in opposite directions as shown in the figure. A circular loop, of radius R = D/2 = 10.3 cm, has the same current flowing in a counterclockwise direction. Determine the magnitude of the magnetic field ...
*Tuesday, April 19, 2011 at 1:53pm by ok*

**Physics**

Two straight and parallel wires of length 1.0 m carry a current - the first carries a currecnt of 9.0 A while the other wire carries a current of 4.0 A. What distance must separate the two straight and parallel copper wires if the force between them is to be 6.0 x 10-6 N? My ...
*Wednesday, December 8, 2010 at 12:19am by Jim*

**physics**

Parallel wires, a distance D = 23.8 cm apart, carry a current, i = 2.43 A, in opposite directions as shown in the figure. A circular loop, of radius R = D/2 = 11.9 cm, has the same current flowing in a counterclockwise direction. Determine the magnitude of the magnetic field ...
*Monday, December 10, 2012 at 7:42am by Anonymous*

**physics**

Two parallel wires which carry currents I1 = 69 A and I2. The top wire is held in position, the bottom wire is prevented from moving sideways but can slide up and down without friction. If the wires have a mass of 5.3 g per metre of length calculate current I2 such that the ...
*Monday, March 22, 2010 at 7:01pm by Jason*

**magnetic field**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?
*Sunday, December 1, 2013 at 10:04am by manu*

**Physics**

(the drawing is of a square with each side equaling L and the opposites of each corner are equal to each other, so the mystery corner would be 3I) Four parallel long straight wires are carrying current perpendicular to the page, and the points at which they pass through the ...
*Tuesday, March 6, 2012 at 9:30pm by Devon*

**physics**

Two horizontal parallel wires which carry currents I1 = 45 A (top)and I2 (bottom). The top wire is held in position, the bottom wire is prevented from moving sideways but can slide up and down without friction. If the wires have a mass of 9.2 g per metre of length, calculate ...
*Sunday, March 21, 2010 at 10:04pm by Jane*

**physics**

Three wires are arranged in an equilateral triangle as shown in the figure below. The lower two wires are 4.00 apart. Assume all the wires are 1.35 long for this problem (extending into the screen).
*Sunday, May 19, 2013 at 4:28pm by Anonymous*

**Physics**

The figure below shows two current carrying wires and the directions of the currents they carry. The wires carry the following currents: I1 = 7.1 A and I2 = 8.9 A. Wire 1 is at (0, 5.8) mm; wire 2 is at (15.1, 0) mm; point P is at (15.1, 5.8) mm. Wire 1 is pointing into the ...
*Tuesday, April 10, 2012 at 10:02pm by Jessica*

**physic **

Two parallel wires carry current of 1.6 ka in opposite directions. the distance between the wires is r=1.6 m compute the magnitude of the force per unit length exerted by one wire on the other?
*Sunday, December 12, 2010 at 3:01pm by Suzi *

**physics**

Two wires run parallel to each other with currents I1 = -60.3 A, and I2 = 44.1 A. If they are a = 0.12 m apart, what is the magnitude of the force (N) per meter of length? I used the formula (f/L)=Uo(I1)(I2)/(2(pi)(r)) I got 4.43810^-2(N/m)but it was wrong..I'm not sure what ...
*Sunday, April 24, 2011 at 7:15pm by Ana*

**Physics**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero? I saw that how Elena ...
*Monday, December 2, 2013 at 9:07pm by Khusi*

**Physics IMP**

Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero? I saw that how Elena ...
*Monday, December 2, 2013 at 5:34pm by Khusi*

**physics**

The four wires that lie at the corners of a square of side a= 5.60 cm are carrying equal currents i= 1.80 A into (+) or out of (-) the page, as shown in the picture. Calculate the x-component of the force on a 1.0-cm long piece of the lower right-hand wire, due to the other ...
*Monday, March 28, 2011 at 9:25pm by Matt*

**Physics**

two long parallel wires carrying currents i1 and i2 in opposite directions. What are the magnitude and direction of the net magnetic field at point P? Assume the following values: i1= 10 A, i2= 20 A, and d = 5 cm
*Thursday, October 20, 2011 at 10:55pm by Anonymous*

**physics**

two llong parallel vertical wires 0.3m apart are placed east-west of one another.The current in the eastely one is 30A and that in the other is 20A.Both currents flow upwards.The earth"smagnetic field is horizontal directed north and has magnetude field B=20x10^-6T.Calculate ...
*Tuesday, August 24, 2010 at 7:42am by kabelo*

**College Physics**

Currents in parallel wires that are in the same direction result in an attractive force between the wires. If in opposite directions, they repel. Use Ampere's Law for the B field and F = F = B I L for the force per length L
*Friday, February 19, 2010 at 6:29pm by drwls*

**Physics 2**

If the currents are flowing in the same direction, they repel one another and you take the difference of I for wires in parallel with each other. If they flow in the same direction you take the sum of I. Do that for both sides of parallel lines and add your equations then set ...
*Sunday, February 12, 2012 at 6:28pm by Charlotte*

**Physics**

I was able to view your figure. Thank you for going to all that trouble. The magnitude of the forces on the wires shown are all the same, but a number cannot be assigned unless the value of B is known. The magnitude, in Newtons, will be F = B sin20*4.5 A* 0.35 m if B is in ...
*Monday, March 7, 2011 at 9:01am by drwls*

**physics**

Four long, parallel conductors carry equal currents of I = 9.50 A. The current direction of the current is into the page at points A and B and out of the page at C and D. Calculate the magnitude and direction of the magnetic field at point P, located at the center of the ...
*Wednesday, November 6, 2013 at 10:05pm by arthur *

**physics**

Calculate the magnitude of the force per meter pushing two straight wires in an extension chord apart when 1 A of DC current lights a 100W study lamp. The separation of the wires is 2mm, and the insulation behaves like a vacuum. Again, I don't know how I can do this without ...
*Monday, April 27, 2009 at 10:22pm by Sam*

**PHYSICS**

Four long, parallel conductors carry equal currents of I = 9.50 A. The current direction of the current is into the page at points A and B and out of the page at C and D. Calculate the magnitude and direction of the magnetic field at point P, located at the center of the ...
*Tuesday, November 5, 2013 at 8:24pm by dave*

**Physics**

Two long straight wires are perpendicular to the page and located at distances d1 = 2 cm and d2 = 3.5 cm from the origin. Wire 1 carries current 5 A out of the page. If the net magnetic field due to the two currents is at an angle of 45 degrees to the x-axis at the origin, ...
*Monday, November 12, 2012 at 7:44pm by Jasmine*

**physics**

Two parallel wires carry currents I1=100A and I2 (they run in the same direction). The top wire is held in position; the bottom wire is prevented from moving sideways but can slide up and down without friction. if the wires have a mass of 10g/meter of length, calculate I2 such...
*Saturday, April 24, 2010 at 7:41pm by lauren*

**Physics--Current question**

Two long straight parallel wires separated by 1.00mm carrying currents in opposite directions with current equaling 10.0A each. Find the magnitude and direction of the magnetic field at Point A which = 0.50mm, Point B = 0.50mm, and Point C=0.50mm and write the directions of ...
*Monday, July 27, 2009 at 11:29am by MP*

**physics**

what is the magnetic effect of placing two wires with equal but oppositely directed currents close together or twisted about each other?
*Wednesday, February 6, 2008 at 2:39am by tina*

**Physics**

What is the magnetic effect of placing two wires with equal but oppositely directed currents close together or twisted about each other?
*Saturday, February 9, 2008 at 2:37am by Heather*

**College Algebra and Trigonometry**

Two guys wires for a radio tower make angles with the horizontal of 50 degree and 49 degree. If the ground anchors for each wide are 150feets apart, find the length of each wire assuming the wires are straight and find the height of the tower?
*Monday, November 5, 2012 at 5:54pm by Julani*

**physics**

Two identical wires with resistance,R and mass,m rest on two smooth parallel superconducting (zero resistance) rails. Initially, they are separated by a distance,D=70 cm. Suddenly, a uniform magnetic field B, perpendicular to the plane of the rails is switched on and the wires...
*Sunday, April 28, 2013 at 4:38am by tsong*

**Physics**

The wire in the drawing carries a current of 14 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 33 A. Use Ampere's law to find the magnitude of the magnetic field at a distance of r = 1.0 m from the wires when ...
*Sunday, February 12, 2012 at 8:12pm by Mareena*

**Physics**

The wire in the drawing carries a current of 13 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 28 A. Use Ampere's law to find the magnitude of the magnetic field at a distance of r = 0.76 m from the wires when...
*Monday, February 25, 2013 at 5:28pm by Anonymous*

**Physics**

Two metallic wires of the same material have the same length but cross-sectinal area is in the ratio of 1:2.they are connected in 1)-series 2)-parallel. Compare the drift velocities of the electrons in the two wires in both the cases. Plzz help
*Sunday, January 20, 2013 at 9:18am by Abhishek*

**math!**

This looks like a previous problem retyped. In the previous version, there was a -y in one equation and the lines wer not parallel. I suggest you make a graph of the two (straight)lines to see how far apart they are and where they cross the x and y axes. The slopes are equal ...
*Monday, February 16, 2009 at 12:12am by drwls*

**Physics 2**

The wire in the figure below carries a current of 13 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 26 A. Use Ampère's law to find the magnitude of the magnetic field at a distance of r = 0.72 m from the wires ...
*Wednesday, March 2, 2011 at 9:33pm by Kellsey*

**Physics 2**

The wire in the figure below carries a current of 13 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 26 A. Use Ampère's law to find the magnitude of the magnetic field at a distance of r = 0.72 m from the wires ...
*Wednesday, March 2, 2011 at 9:34pm by Kellsey*

**Physics 2**

The wire in the figure below carries a current of 12 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 30 A. Use Ampère's law to find the magnitude of the magnetic field at a distance of r = 0.72 m from the wires ...
*Monday, February 13, 2012 at 1:45pm by Anne*

**physics**

Parallel wires with currents in the same direction are attracted to each other. If the currents are in opposite directions, they repel. If the currents are in opposite directions, the magnetic field along a line midway between them is twice the field due to a single wire. The ...
*Sunday, May 24, 2009 at 6:39am by drwls*

**Physical Science**

The towers hold the pair of parallel wires. They are asking for the force on the length of wires between the two towers.
*Wednesday, March 10, 2010 at 10:12pm by drwls*

**physics**

* A and B Two wires long and parallel, each carrying a distance of 1 m in two opposite directions, if the trend A equals one third B (Ia=1/3Ib), founding after the point which lies on the line where the two vertical magnetic field when the outcome is zero. This makes no sense ...
*Thursday, May 24, 2007 at 2:11pm by Hamilton*

**physics**

Two wires run from the top of a pole 2.6 tall that supports a volleyball net. The two wires are anchored to the ground 2.0 apart, and each is 2.0 from the pole. The tension in each wire is 100. I do not understand how to setup work. if could show I would get better ...
*Sunday, March 17, 2013 at 12:04am by rob*

**Physics**

A street lamp weighs 150 N. It is supported by two wires that form an angle of 140° with each other. The tensions in the wires are equal. (a) What is the tension in each wire? (b) If the angle between the wires is reduced to 110°, what is the tension in each wire?
*Tuesday, February 11, 2014 at 9:33am by Khadija*

**Physics**

Four long, straight wires are parallel to each other and their cross-section forms a square. Each side of the square measures 0.0112 m. If each wire carries a currrent of 8.33 A in the direction shown, find the magnitude of the total magnetic field at P, the center of the square.
*Monday, December 1, 2008 at 2:37pm by Brynlie*

**geometry**

draw a line through a vertex parallel to the opposite base. The other two sides are transversals between the two parallel lines. Since alternate interior angles are equal, and the 3 angles formed at the vertex add up to a straight angle ...
*Tuesday, February 26, 2013 at 11:34am by Steve*

**trig**

Four wires support a 40-meter radio tower. Two wires are attached to the top and two wires are attached to the center of the tower. The wires are anchored to the ground 30-meters from the base of the tower.
*Tuesday, February 26, 2013 at 10:33am by Tina*

**Physics**

Two wires run from the top of a pole 2.6m tall that supports a volleyball net. The two wires are anchored to the ground 2.0m apart, and each is 2.0m from the pole. The tension in each wire is 100N. here are the dimensions. I do not understand how to setup work. if could show I...
*Sunday, March 17, 2013 at 11:51am by rob*

**physics**

Two identical superconducting rings are brought very close to each other (see the image below). The currents in the rings are equal to I,=0.05 A. Determine the the current I in Amps in the rings if we separate them far apart.
*Thursday, April 25, 2013 at 9:04am by er*

**PLEASE COULD SOMEONE HELP ME OUT Physics**

Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended by 0.50m long strings...If the suspension strings make an angle of 3.0 degree with the vertical, what is the current in the wires? Thank you......
*Monday, February 25, 2013 at 10:28pm by John*

**physics**

Two identical thin wires are oriented along the x and y axes. With current on x plane going North. Current on y plane going West.Both carry the same current I, and there is no electrical contact between the wires. The points A, B, C, D are each equidistant from both wires. A: ...
*Saturday, March 16, 2013 at 4:46am by Melissa*

**PHYSICS!!!**

A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x = -2.0 cm. A second, parallel wire carrying a 2.5 A current intersects the x-axis at x = 2.0 cm. PART A At what point on the x-axis is the magnetic field zero if the two currents are ...
*Wednesday, March 31, 2010 at 3:54pm by OLLIJURT*

**House/ Crate training (dogs)**

please check my answer thanks Which one of the following factors contributes to the saftey of a puppy or a dog that's crated in a wire cage A diameter of the wires B deimensions of the crate C weight of the crate D distance between wires I picked D because if the wires are to ...
*Thursday, June 26, 2008 at 10:32pm by Helana*

**Physics**

One long wire carries current 26.0 A to the left along the x axis. A second long wire carries current 68.0 A to the right along the line (y = 0.280 m, z = 0). Where in the plane of the two wires is the total magnetic field equal to zero?
*Thursday, August 15, 2013 at 11:06pm by Emily*

**science**

How large a current would a very long, straight wire have to carry so that the magnetic field 2 cm from the wire is equal to 1 G (comparable to the earth’s northward-pointing magnetic field)?
*Monday, April 18, 2011 at 2:59pm by kamal*

Pages: **1** | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>