Search: A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.2 ?

Number of results: 57,965

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 ...
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 ...
Monday, February 25, 2013 at 5:28pm by Anonymous

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...
Monday, February 13, 2012 at 1:45pm by Anne

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...
Wednesday, March 2, 2011 at 9:34pm by Kellsey

physics
A 570-turn solenoid is 19cm long. The current in it is 32A . A 2.0cm -long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 27A current downward (and is connected by other wires that don't concern us). What is the force on this ...
Monday, April 8, 2013 at 9:44pm by bud

physics
A long, vertical, straight wire carries a current I going upwards. The wire is perpendicular to the plane of a circular metal loop and passes through the center of the loop. The loop is allowed to fall and maintains its orientation with respect to the straight wire while doing...
Wednesday, July 28, 2010 at 4:53pm by josh

physics
A long, straight wire lies on a horizontal table and carries a current of 3.05 µA. In a vacuum, a proton moves parallel to the wire (opposite the current) with a constant speed of 3.00 104 m/s at a distance d above the wire. Ignoring the magnetic field due to the Earth, ...
Tuesday, December 4, 2012 at 5:01pm by Anonymous

Physics
A 550 turn solenoid is 15 cm long. The current in it is 33 A. A 3.0 cm long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 22 A current downward( and is connected by other wires that dont concern us). What is the force on this wire...
Sunday, March 2, 2008 at 9:40am by jenish

physic
A long straight horizontal wire carries a current = 3.90 A to the left. A positive 1.00 C charge moves to the right at a distance 1.50 m above the wire at constant speed v = 5000 m/s. What is the magnitude of the magnetic field at the location of the charge due to the current-...
Thursday, March 8, 2012 at 1:33am by john

Physics
A square loop 10cm on a side carries a current I' = 1A, and is placed 10cm away from a long,straight wire of current I = 10A, which is in the plane of the loop. Calculate the net force on the loop (in Newtons). Is the loop attracted to or repelled from the straight wire?
Monday, October 29, 2012 at 3:31pm by Zom

AP Physics
A long, straight wire carries a current of 740 mA. A thin metal rod 45 cm long is oriented perpendicular to the wire and moves with a speed of 1.8 m/s in a direction parallel to the wire. What are the size and direction of the emf induced in the rod if the nearest point of the...
Saturday, April 9, 2011 at 4:44pm by Martina

College physics
The magnetic field at the center of a 0.70-cm-diameter loop is 2.4 mT. What is the current in the loop? A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.4 mT?
Monday, July 26, 2010 at 8:27pm by monique

Physics
A long, straight wire carries a current of 48 A. The magnetic field produced by this current at a certain point is 6.5 10-5 T. How far is the point from the wire?
Wednesday, September 26, 2007 at 1:08am by Mary

physics
A long straight wire is oriented in the z direction and carries a current I. A square loop with sides of length w is in the xz-plane with its nearest edge a distance d from the wire. In time of t, the square loop moves a distance of l closer to the wire. What is the emf ...
Tuesday, November 11, 2008 at 12:16am by sarah

Physics
A 5.30-ìC charge is moving with a speed of 9.30 x 104 m/s parallel to a very long, straight wire. The wire is 6.60 cm from the charge and carries a current of 87.0 A. Find the magnitude of the force on the charge.
Saturday, October 29, 2011 at 9:53pm by Kristi

physics
A long, straight wire has a 12.1 A current flowing in the positive x-direction, as shown in the figure. Close to the wire is a square loop of copper wire that carries a 2.23 A current in the direction shown. The near side of the loop is d = 57.1 cm away from the wire. The ...
Monday, December 10, 2012 at 7:42am by Anonymous

college physics
A 4m long copper wire has a diameter of 2mm and carries a current of 10A. Determine the ff: a. current density in the wire b. electric field c. potential difference between the ends of the wire d. resistance of the wire
Monday, February 25, 2013 at 2:04am by Zell

physics
A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the lower wire.
Monday, April 8, 2013 at 9:44pm by bud

Physics
A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the lower wire.
Monday, April 8, 2013 at 6:57pm by bud

PHYSICS
A long, straight wire lies on a horizontal table and carries a current of 1.45 µA. In a vacuum, a proton moves parallel to the wire (opposite the current) with a constant speed of 3.00 104 m/s at a distance d above the wire. Determine the value of d. Ignore the magnetic ...
Wednesday, May 26, 2010 at 5:24pm by Physics

Physics concept question
A long straight horizontal wire carries a current I = 2.10 A to the left. A positive 1.00 C charge moves to the right at a distance 4.50 m above the wire at constant speed v = 2250 m/s. What are the magnitude and the direction of the magnetic force on the charge? h t tp:// ...
Monday, March 7, 2011 at 2:10pm by Robert

physics
A horizontal wire carries a large current. A second wire carrying a current in the same direction is suspended below it.Can the current in the upper wire hold the lower wire in suspension against gravity?
Friday, February 25, 2011 at 10:13am by Lia

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
A -6.00 µC charge is moving with a speed of 6.60 104 m/s parallel to a very long, straight wire. The wire is 5.00 cm from the charge and carries a current of 73.0 A in a direction opposite to that of the moving charge. Find the magnitude and direction of the force on the...
Monday, February 6, 2012 at 5:07pm by DCM

Physics (PLEASE HELP)
A -6.00 µC charge is moving with a speed of 6.60 104 m/s parallel to a very long, straight wire. The wire is 5.00 cm from the charge and carries a current of 73.0 A in a direction opposite to that of the moving charge. Find the magnitude and direction of the force on the...
Tuesday, February 7, 2012 at 5:05pm by DCM

physics 2
A long wire carries a current of 1 ampere.Find the magnitude of the magnetic field 2 meter away from the wire.
Monday, September 24, 2012 at 11:09am by ace

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
A copper wire 0.40m long carries a current of 6.0A and weighs 0.35N. What strenght magnetic field is required to balance the weight of the wire?
Wednesday, May 5, 2010 at 3:49pm by Javier

Physics
A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true. a) The wire will be ...
Sunday, November 14, 2010 at 6:59pm by Katie

PHYSICS
A long-straight wire carries a current and is aligned with the North-South direction. You place a compass 4 cm directly above the wire and above the North/East/South/West plane. The compass needle, which initially pointed North (far away from the wire) is now deflected by 20o ...
Wednesday, October 17, 2012 at 3:36pm by Alysse

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
A long straight wire of radius R = 1 cm carries a total current I = 1 Amp which flows uniformly through the cross-section of the wire. Draw a diagram of this wire and the current and the magnetic field which is produced. Using Ampere’s law solve for the magnitude of the ...
Thursday, March 11, 2010 at 7:07pm by joshua

Physics
The magnetic force on a straight wire .69 m long is 1.5 x 10^-3 N. The current in the wire is 16.9 A. What is the magnitude of the magnetic field that is perpendicular to the wire?
Monday, February 27, 2012 at 10:30pm by Doryn

college physics
A long, straight, cylindrical wire of radius R carries a current uniformly distributed over its cross section. 1. At what location is the magnetic field produced by this current equal to quarter of its largest value? Consider points inside the wire. 2.At what location is the ...
Thursday, March 7, 2013 at 3:36pm by Anonymous

Physics
A rectangular loop of wire, L = 26.2 cm and W = 15.4 cm, carries a I1 = 1.83 A current and lies in a plane (d = 13.6 cm), which also contains a very long straight wire carrying a I2 = 10.5 A current. I used this equation: F1+F2 = mu0*I1*I2*0.262/(2pi)*(1/0.136-1/0.290)=2.57*10...
Saturday, March 24, 2012 at 5:41pm by josh

physic
The resistivity of gold is at a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, carries a current of 480 ma. The power dissipated in the wire is closest to:
Wednesday, August 4, 2010 at 12:34pm by paul

Physics
A large spool in an electrician's workshop has 52 m of insulation-coated wire coiled around it. When the electrician connects a battery to the ends of the spooled wire, the resulting current is 2.3 A. Some weeks later, after cutting off various lengths of wire for use in ...
Monday, April 1, 2013 at 7:29pm by Drue

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

Physics
A long, straight wire has a uniform linear charge density of 7.50X10^-4 C/m. A point charge q=15.0 microcoulombs is located 4.50 cm away from the wire. Find the magnitude of the force exerted by the charge q on the wire.
Tuesday, January 31, 2012 at 8:26am by Angelo

physics
By "activity" I assume you want to carry out an esperiment. All you need is an ohmeter and a wire of long length. You can put the probes at different points along the wire (at different wire distances apart) and measure the ohms. The wire does not have to be straight...
Sunday, January 30, 2011 at 9:35am by drwls

physics
an insulated circular ring of diameter 6.50cm carries a 12.0 A current and is tangent to a very long, straight insulated wire carrying 10.0 A of current. find the magnitude and direction of the magnetic field at the center of the ring due to this combination of wires.
Wednesday, March 30, 2011 at 5:13pm by jennifer

Physic please check
A +6.00 µC charge is moving with a speed of 7.00 x 10^4 m/s parallel to a very long, straight wire. The wire is 5.00 cm from the charge and carries a current of 63.0 A in a direction opposite to that of the moving charge. Find the magnitude and direction of the force on ...
Monday, November 5, 2007 at 9:24pm by Mary

physics
A 36 cm long copper wire carries a current of 6.0 A and weighs 0.45 N. A certain magnetic field is strong enough to balance the force of gravity on the wire. What is the strength of the magnetic field?
Sunday, March 10, 2013 at 10:09am by Jeff

Physics
One very long wire carries a current of 30A to the left along the x-axis.A second very long wire carries a current of 50A to the right along the line(y=0.280m,z=0) A)Where in the plane of the two wires is the total magnetic field equal to zero? B)A particle with a charge of -2...
Wednesday, November 11, 2009 at 2:48pm by Sandhu

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

Math
a factory has a machine which bends wire at a rate of 8 units of curvature per second. how long does it take to bend a straight wire into a circle of radius 5?
Monday, September 24, 2012 at 1:56pm by James

physics
If a metal wire carries a current of 79 . 0 mA, how long does it take for 7.90 × 10 20 electrons to pass a given cross-sectional area anywhere along the wire? The fundamental charge is 1 . 602 × 10 − 19 C. Answer in units of s
Tuesday, May 21, 2013 at 7:24pm by scott

physics
If a metal wire carries a current of 130 mA, how long does it take for 3.50×10 20 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10 −19 C. Answer in units of s.
Tuesday, February 22, 2011 at 11:09pm by bre

physics
For a long straight wire, carrying a current of 20 A. A rectangular coil 5 x 10 cm2 is 2 cm apart. The coil carries a current of 5 A. a) determining the force acting on each segment of the rectangular coil. b) What is the net force on the coil?
Friday, April 5, 2013 at 1:50pm by Sergio

physics
Consider a long charged straight wire that lies fixed and a particle of charge +2e and mass 6.70E-27 kg. When the particle is at a distance 1.31 cm from the wire it has a speed 2.30E+5 m/s, going away from the wire. When it is at a new distance of 2.71 cm, its speed is 3.10E+6...
Wednesday, January 27, 2010 at 4:36pm by jaredd

college physics
Consider a long charged straight wire that lies fixed and a particle of charge +2e and mass 6.70E-27 kg. When the particle is at a distance 1.31 cm from the wire it has a speed 2.30E+5 m/s, going away from the wire. When it is at a new distance of 2.71 cm, its speed is 3.10E+6...
Wednesday, January 27, 2010 at 5:58pm by jibjab

physics
A gold wire 5.90m long and of diameter 0.890 mm carries a current of 1.21A. A)Find the resistance of this wire. B)Find the potential difference between its ends. Can someone please help me I don't know how to answer these questions? R=p(L/A) 1.21(5.90m/.890mm) Am i setting...
Sunday, April 12, 2009 at 3:21pm by help

Physics
A 2.00 cm x 2.00 cm square loop of wire with resistance 1.30×10^−2 Ohms is parallel to a long straight wire. The near edge of the loop is 1.00 cm from the wire. The current in the wire is increasing at the rate of 110 A/s. What is the current in the loop?
Sunday, April 13, 2008 at 11:09am by Manda

physics
A copper wire has a circular cross section with a radius of 3.75 mm. If the wire carries a current of 4.00 A, find the drift speed of the electrons in the wire. (Assume the density of charge carriers (electrons) in a copper wire is n = 8.46 *10^28 electrons/m^3.) thanks
Sunday, March 27, 2011 at 12:29pm by Rachel

geometry
A piece of straight thin wire fits diagonally across a rectangle of length 7cm. If the wire is 10cm long, what would be the width of the rectangle.
Wednesday, October 13, 2010 at 7:19pm by Vidal

Physics
A 45-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 67 A and experiences a magnetic force of 0.15 N. Find the magnitude of the earth's magnetic field at the location of the wire, assuming the field makes an angle of 51....
Monday, April 1, 2013 at 2:44pm by Anonymous

physics
A wire of radius one meter is centered on the origin in the xy plane. This wire carries a total charge of +Q. Another wire of length two meters runs along the z-axis and is centered at the origin. It carries total charge -Q. What is the electric field vector at any point on ...
Friday, April 20, 2012 at 11:38pm by allan

math
a taut wire of length 'W'emits a single note when plucked.if it were half as long it woould emit the same note but one octave higher.How long should the same wire be to emit the same note but one octave lower ?
Friday, March 1, 2013 at 9:09pm by sarah

Physics - Electricity
Can you please check my answers. 1) What carries energy through wire? electrons 2) What happens to some of the energy when it moves through the wire? becomes lost due to the movement of energy requiring some kinetic energy 3) If a resistance is large, why does the wire heat up...
Saturday, November 24, 2007 at 10:44pm by xX_Supaman_Xx

11th grade Physics
A long,straight current-carrying wire runs from north to south. A) A compass needle placed above the wire points with its N-pole toward the east. In what direction is the current flowing? B) If a compass is put underneath the wire, which direction will the compass neddle point?
Wednesday, May 5, 2010 at 8:44am by David Nipp

Physics
Ten meters away from a long straight wire, the field is 10-4 (10 to the negative four) Tesla. What current flows through the wire? I know the answer is 5.0kA but I am not sure what formula to use.
Tuesday, March 12, 2013 at 1:01am by Mar

Physics
An aluminum wire of diameter 2.47 mm carries a current of 12.9 A. How long on average does it take an electron to move 10.5 m along the wire? Assume 3.50 conduction electrons per aluminum atom. The mass density of aluminum is 2.70 g/cm3 and its atomic mass is 27.0 g/mol.
Friday, February 10, 2012 at 9:07am by jason

sanches
A wire carries a 15 microampere current. How many electrons pass a given point on the wire in 1.0 ?
Monday, September 28, 2009 at 9:11pm by josh

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
A long, straight wire carrying a current of 317 A is placed in a uniform magnetic field that has a magnitude of 7.69 × 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero. Locate this point by specifying its ...
Monday, February 25, 2013 at 5:03pm by Anonymous

physics
A wire carries a 15 microampere current. How many electrons pass a given point on the wire in 1.0 ?
Monday, September 28, 2009 at 9:15pm by josh sanches

physics
A wire of length 0.655 m carries a current of 21.0 A. In the presence of a 0.470-T magnetic field, the wire experiences a force of 5.46 N. What is the angle (less than 90°) between the wire and the magnetic field?
Tuesday, November 10, 2009 at 2:07am by Anonymous

Physics - Electromagnetism
This is the last question for a final exam preparation sheet and I can't figure out the answer. Any help would be greatly appreciated. Thank you. - One very long wire carries current 10.0 A to the left along the x axis. A second very long wire carries current 75.0 A to the...
Wednesday, July 25, 2012 at 2:17pm by Robert

Physical Science
you forgot to take into account the field created by the long straight ends of the wire yes the loops have current flowing in opposite direction so the field is in opposite direction but in one situation, the field is additive with that created by the straight end of the wire...
Friday, March 19, 2010 at 10:16pm by jon

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

College Physics
If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two wires?
Saturday, October 20, 2012 at 8:55pm by ann

science
If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two wires?
Tuesday, October 30, 2012 at 1:39pm by ann

PHYSICS 2
A horizontal wire that runs east-west carries a steady current to the east. A C-shaped magnet is placed so that the wire runs between the poles, with the north pole above the wire and the south pole below. What direction of the magnetic force on the wire between the poles?
Sunday, October 28, 2012 at 10:16am by Ashley

physics
Assume the Earth's magnetic field is 51.3 µT northward at 60.0° below the horizontal in a particular city. A tube in a neon sign stretches between two diagonally opposite corners of a shop window—which lies in a north–south vertical plane—and ...
Wednesday, February 20, 2013 at 9:42pm by Matteo

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
A thin 12 cm long solenoid has a total of 460 turns of wire and carries a current of 2.1 A. Calculate the magnitude of the field inside near the center.
Saturday, April 3, 2010 at 8:59pm by JOSE

Physics
A silver wire and a platinum wire of the same length have the same resistance. What is the ratio of the diameter of the silver wire to that of the platinum wire. I did 10.6E-8/1.59E-8 but am not getting correct answer?
Friday, February 10, 2012 at 9:06am by jason

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

Physics
A long wire carries a current of 20 A along the directed axis of a long solenoid. The field due to the solenoid is 4 mT. Find the field at a point 3 mm from the solenoid axis.
Wednesday, December 12, 2012 at 10:25am by Maryam

physics
A wire of length 0.655m carries a current of 21.0A. In the presence of a 0.470-T magnetic field, the wire experiences a force of 5.46N. What is the angle (less than 90degrees) between the wire and the magnetic field？ I NEED HELP WITH THIS PROBLEM!!!THANKS&#65281...
Tuesday, April 1, 2008 at 3:26pm by Malisa

Physics
The four wires in the figure are tilted at 20 with respect to the field direction. Each carries 4.5 and is 0.35 long. What is the magnitude and direction of the force on each wire?
Monday, March 7, 2011 at 9:01am by Bob

physics
A wire of length 11 cm carries a current of 1.1 A. When the wire is placed so that the current passes through the wire along the positive x direction, the force on the wire due to an external magnetic field B is measured to be -(0.04 N)j. When the wire is moved so the current ...
Saturday, February 27, 2010 at 8:10pm by Sandhya

electromagnatic
a) Find the forces per unit length on two long, straight and parallel conductors, if each carries a current of 10.0 A in the same direction and the separation distance is 0.20 m. b) Find the maximum torque on an 85-turn, rectangular coil, 0.2 m by 0.3 m, carrying a current of ...
Saturday, January 8, 2011 at 2:59pm by fati

physics
A uniform horizontal wire with a linear mass density of 0.48 g/m carries a 1.9 A current. It is placed in a constant magnetic field, with a strength of 3.5 10-3 T, that is horizontal and perpendicular to the wire. Neglect the magnetic field of the Earth. (a) As the wire moves ...
Sunday, April 1, 2012 at 4:30pm by bob

Physics
How much energy is stored in a 2.90-cm-diameter, 14.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.790 ?
Saturday, April 7, 2012 at 1:21am 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?
Thursday, December 13, 2012 at 10:02pm by Lorii

Physics
A wire of radius R carries a non-uniform current: the current density, j, (current per unit area) varies as a function of distance r from the central axis of the wire according to j = j0(R/r) (and j = 0 outside the wire, of course). Find expressions for the strength of the ...
Wednesday, November 12, 2008 at 8:31pm by Anonymous

physics
At New York City, the earth's magnetic field has a vertical component of 5.2 10-5 T that points downward (perpendicular to the ground) and a horizontal component of 1.8 x 10^-5 T that points toward geographic north (parallel to the ground). What is the magnitude and ...
Tuesday, February 8, 2011 at 7:23pm by aml

Physics Electricity and magnetism
A current with sinusoidal time-dependence, whose peak value is 3.55 A and frequency is 463 cycles per second, passes through a long straight wire. A rectangular 72.2 cm × 32.5 cm loop of copper wire is located 80.2 cm from the wire and is coplanar with it. Calculate the ...
Sunday, April 28, 2013 at 5:45pm by JD

Physics
A silver wire and a platinum wire of the same length have the same resistance. What is the ratio of the diameter of the silver wire to that of the platinum wire.
Thursday, February 9, 2012 at 1:43pm by jason

physics
The force acting on a wire that is at right angles to a(n) 0.80 T magnetic field is 2.1 N. The current in the wire is 6.7 A. How long is the wire?
Sunday, March 10, 2013 at 10:07am by Jeff

physics
A wire that is 630 m long is perpendicular to a 0.31 T magnetic field. A 1.8 N force acts on the wire. What current is in the wire?
Sunday, March 10, 2013 at 10:06am by Jeff

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