Search: find the magnetic field (magnitude and direction) at point A, which is located 9.0 cm away from wire 2 on a line perpendicular to the line joining the wires

Number of results: 88,098

College physIcs
An electron travels at a speed of 4.0×104 m/s through a uniform magnetic field whose magnitude is 1.4×10−3 T. What is the magnitude of the magnetic force on the electron if its velocity and the magnetic field are perpendicular? F= N What is the magnitude ...
Friday, February 19, 2010 at 5:52pm by Lanise

physics - speed of electron in magnetic field
A beam of electron is accelerated by a potential difference of 2.5okV. The electrons are then allowed to pass into a magnetic field of strength 10.0mT. As the electrons enter the field, the direction of the velocity is at right angles to the direction of the magnetic field. ...
Sunday, December 5, 2010 at 6:13pm by Farah

physics
A current I = 16 A is directed along the positive x-axis and perpendicular to a magnetic field. A magnetic force per unit length of 0.15 N/m acts on the conductor in the negative y-direction. Calculate the magnitude and direction of the magnetic field in the region through ...
Monday, March 8, 2010 at 11:01pm by Raul

Physics
An electron that has velocity v = (3 x 105 m/s) and moves along positive x direction through the uniform magnetic field B = (0.8T) which is along the positive z direction. a. Find the force on the electron (magnitude and direction). (e = - 1.6 x 10-19 C, m=9.1 x10-31 kg) b. ...
Monday, April 25, 2011 at 6:41pm by asif

Physics
An electron moving through a uniform magnetic field with a velocity of 2.0x10^6 m/s [up] experiences a maximum magnetic force of 5.1x10^-14 N [left]. CAlculate the magnitude and direction of the magnetic field.
Sunday, April 26, 2009 at 11:24pm by Susan

physics-Electric & magnetic fields
A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude 10 v/m and a uniform magnetic field of magnitude 10^-2 T. The electric and magnetic fields are parallel and are in the z-direction. In the following ...
Sunday, May 15, 2011 at 5:47am by Sandhya

physics
What is the direction of the force acting on a current-carrying conductor lying in a magnetic field? A. It is in a direction opposite to the direction of the magnetic field. B. It is at angles to the direction of the current. C. It is at right angles to both the direction of ...
Sunday, May 24, 2009 at 6:25pm by sally

physics
A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.027 s, the normal makes an angle of 45o with the field because the coil has made one-eighth of a ...
Friday, November 23, 2012 at 9:40pm by johnathan

Physics
need help with this problem :/ A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.027 s, the normal makes an angle of 45o with the field because the coil has...
Sunday, October 28, 2012 at 6:13pm by derek

physics
A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude 10 v/m and a uniform magnetic field of magnitude 10^-2 T. The electric and magnetic fields are parallel and are in the z-direction. In the following ...
Sunday, May 15, 2011 at 3:28am by Sandhya

Physics
An electron moving along the positive x axis perpendicular to a magnetic field experiences a magnetic direction in the negative y direction. What is the direction of the magnetic field?
Wednesday, April 2, 2008 at 12:46am by Jessica

physics
A charge of 12 ìC, traveling with a speed of 9.0 x 106 m/s in a direction perpendicular to a magnetic field, experiences a magnetic force of 8.7 x 10-3 N. What is the magnitude of the field?
Monday, April 1, 2013 at 8:58pm by adrienne

science
The Earth's magnetic field will cause the newly formed seafloor to become magnetic. When the seafloor cools, the magnetism of the sefloor will become permanent. Then if the Earth's magnetic field changes direction (happens every few hundred thousand years), the ...
Monday, March 23, 2009 at 5:56pm by Count Iblis

physics
can anyone please help me on this one? A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.027 s, the normal makes an angle of 45 degrees with the field ...
Sunday, November 18, 2012 at 8:23pm by johnathan

Physics
A proton moving with a speed of 200 m/s enters perpendicular to the direction of the magnetic field and experiences a force of 2x10^-18N. What is the magnitude of the magnetic field? any help is reallya appreciated
Sunday, January 27, 2013 at 9:10pm by anonymous

Physics
A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
Thursday, April 25, 2013 at 1:56pm by Valerie

Math
An electron accelerates from rest to the right, in a horizontally directed electric field. The electron then leaves the electric field at a speed of 4.0 × 106, entering a magnetic field of magnitude 0.20 T (Tesla) directed into the screen. Calculate the magnitude and ...
Saturday, February 23, 2013 at 4:30pm by Ginny

physics
A 0.0150-m wire oriented horizontally between the poles of an electromagnet carries a direct current of 9.5 A. The angle between the direction of the current and that of the magnetic field is 25.0° as shown. If the magnetic field strength is 0.845 T, what is the magnitude...
Thursday, May 6, 2010 at 4:27pm by lakhvir

Physics
A magnetic field has a magnitude of 1.2 10-3 T, and an electric field has a magnitude of 5.9 103 N/C. Both fields point in the same direction. A positive 1.8 µC charge moves at a speed of 2.9 106 m/s in a direction that is perpendicular to both fields. Determine the ...
Thursday, September 27, 2007 at 10:45pm by Mary

Physics!!!
When does a magnetic field induce maximum EMF in a wire moving with a constant velocity? A. When the wire is moved at an angle of 60 degrees to the direction of the magnetic field B. When the wire is moved at right angles to the magnetic field C, When the wire is moved ...
Sunday, April 12, 2009 at 7:45pm by sophie

physics
When does a magnetic field induce maximum EMF in a wire moving with a constant velocity? A. When the wire is moved at an angle of 60 degrees to the direction of the magnetic field B. When the wire is moved at right angles to the magnetic field C, When the wire is moved ...
Sunday, April 12, 2009 at 4:27pm by sophie

Physics
A flat circular coil with 192 turns, a radius of 2.35 x 10-2 m, and a resistance of 0.359 Ù is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ÄB/&...
Thursday, March 7, 2013 at 9:14pm by Anonymous

physics
The current density in a cylindrical conductor of radius R = 59.9 cm, varies as J(r) = J0r/R (in the region from zero to R), where J0 = 0.511 C/m2. a) Find the magnitude of the magnetic field at r = 29.95 cm. b) Find the magnitude of the magnetic field at r = 119.8 cm
Tuesday, April 19, 2011 at 1:53pm by ok

Physics
A proton, moving in negative y-direction in a magnetic field , experiences a force of magnitude F, acting in the negative x direction. a) What is the direction of the magnetic field producing force? b) Does your answer change if the word proton is replaced by electron? I get a...
Tuesday, October 25, 2011 at 8:27pm by Jessica

Physics
Near the equator, the Earth's magnetic field point almost horizontally to the north and has a magnitude of B = 50 micro T. What should be the magnitude and direction for the velocity of an electron if its weight is to be exactly balanced by the magnetic force?
Tuesday, November 16, 2010 at 10:19pm by Ri

physics
The current density in a cylindrical conductor of radius R = 59.5 cm, varies as J(r) = J0r/R (in the region from zero to R), where J0 = 0.423 C/m2. a) Find the magnitude of the magnetic field at r = 29.75 cm. b) Find the magnitude of the magnetic field at r = 119 cm
Monday, December 10, 2012 at 7:58am by Anonymous

physics
A magnetic field has a magnitude of 1.20 10-3 T, and an electric field has a magnitude of 5.50 103 N/C. Both fields point in the same direction. A positive 1.8-µC charge moves at a speed of 2.60 106 m/s in a direction that is perpendicular to both fields. Determine the ...
Tuesday, February 8, 2011 at 10:04pm by aml

Physics
An electron is moving paralel to the Earth's surface at the equator in a direction 12 degrees south of east. Its velocity is 9.2 x 10^4 m/s and a magnetic force of 9.4 x 10^-18 N is exerted on the electron. If the magnetic field points south at this location, what is the ...
Monday, February 27, 2012 at 10:38pm by Doryn

Physics
An electron travels at a speed of 1.0×104 through a uniform magnetic field whose magnitude is 1.2×10−3 . What is the magnitude of the magnetic force on the electron if its velocity and the magnetic field are perpendicular?
Monday, November 1, 2010 at 3:43pm by Lisa

physics
A conductor of length 0.8 m carrying a current of 2.5 A is kept in a magnetic field of 0.6 Tesla. What is the magnitude of the force experienced by the conductor if it is inclined at an angle 30° to the direction of the magnetic field? Choose one answer. a. 0.6 N b. 1.0 N ...
Saturday, June 4, 2011 at 9:54pm by ashley --- HELP PLEASEE!!!

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

Physics 3
A 2.3-keV proton is moving horizontally and passes perpendicular to the Earth’s magnetic field at a location where the field magnitude is 52.0 T. i) Determine the magnetic force on the proton? ii) Find the ratio of this force to the gravitation force on the ...
Wednesday, April 13, 2011 at 1:55pm by Ziera

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 PLEASE HELP!
A flat circular coil with 97 turns, a radius of 4.04 10-2 m, and a resistance of 0.528 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB...
Thursday, March 14, 2013 at 4:20am by Nixon

Physics
A wire 75cm long carrying a current of 6.0A toward the north passes through a uniform magnetic field. The magnitude of the force acting on the wire is 0.60N and is directed downward. What is the strengh and direction of the magnetic field?
Wednesday, May 5, 2010 at 3:47pm by Javier

Physics
A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a current I0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with inner radius R2 and outer radius R3. It ...
Sunday, April 7, 2013 at 5:17am by abdul rahman

physics
Which of the following is correct for the charge in a magnetic field? Choose one answer. a. A stationery charge can experience a force in a magnetic field. b. A moving charge parallel to the direction of the magnetic field can experience a force. c. A moving charge ...
Saturday, June 4, 2011 at 9:56pm by ashley --- HELP PLEASEE!!!

science
An electromagnetic field contains of both an electric field (which exerts a force on any charge) and a magnetic field (which exerts a force only on moving charges). Electric and magnetic fields are vector properties (having magnitude and direction of every point in space), but...
Thursday, December 31, 2009 at 2:35pm by drwls

Electromagnetism
A particle with a mass of 6.64x10^-27 kg and a charge of +3.2x10^-19 C is accelerated from rest through a potential difference of 2.45x10^6 V. the particle then enters a uniform magnetic field of strength 1.60 T. a) Find the particle's gain in KE as it moves through the ...
Thursday, April 18, 2013 at 1:48am by Anonymous

Physics
There are two situations in which it possible for a charged particle to be in a magnetic field but not experiencing a magnetic force. What are they? Given that Fm=qVBsintheta, I am going to say 1. If the particle is NOT in motion. 2. The direction of currect and the direction ...
Monday, December 7, 2009 at 8:14pm by Connor

Physics
I don't know if my other post went through or not, so I'm reposting it here. The first question I didn't know the answer to and the second one was worded in a way that I couldn't understand. 1. With respect to an electric and a magnetic field, how does the ...
Saturday, March 29, 2008 at 6:54pm by Emily

physics
A charge of -8.9 µC is traveling at a speed of 7.8 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 60°. A force of magnitude 4.0 10-3 N acts on the charge. What is the magnitude of the ...
Saturday, February 5, 2011 at 5:18pm by Anonymous

physics
A moving proton with a speed of 0.3 m/s experiences a force of 1.5*10^-20N, when it enters at a right angle to the direction of the magnetic field. What is the magnitude of the magnetic field? Choose one answer. a. 0.3 Tesla b. 0.5 Tesla c. 0.9 Tesla d. 1.3 Tesla
Saturday, June 4, 2011 at 9:55pm by ashley --- HELP PLEASEE!!!

Physics
A flat circular coil with 103 turns, a radius of 3.96 10-2 m, and a resistance of 0.456 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of Δ...
Wednesday, March 20, 2013 at 7:38pm by bbbgen

Physics repost
A magnetic field has a magnitude of 1.2 10-3 T, and an electric field has a magnitude of 5.9 103 N/C. Both fields point in the same direction. A positive 1.8 µC charge moves at a speed of 2.9 106 m/s in a direction that is perpendicular to both fields. Determine the ...
Saturday, September 29, 2007 at 12:38pm by Mary

physics
A 0.2 kg conductor of length 0.8 m carries 2 ampere current to the right in a magnetic field. What is the magnitude and the direction of the magnetic field acting on the conductor if the net force on the rod is zero? (Assume that the rod is hung by two insulating supports.)
Sunday, June 12, 2011 at 4:26pm by unknown

Physics
An electric generator contains a coil of 100 turns of wire, each turn forming a rectangular loop 50cm by 30cm. The coil is placed entirely in a uniform magnetic field with magnitude, B = 3.5T and direction initially perpendicular to the coil's plane. What is the maximum ...
Wednesday, November 24, 2010 at 12:31pm by Ri

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
At a certain location, the Earth's magnetic field has a magnitude of 5.90E-5 T and points in a direction that is 71.6° below the horizontal. Calculate the magnitude of the magnetic flux through the top of a desk at this location that measures 132 cm by 83.3 cm.
Monday, October 18, 2010 at 10:38am by VJC

Physics
A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic field. Find the expression...
Monday, November 14, 2011 at 8:15pm by Jasmine

physics
the magnitude of earths magnetic field at the magnetic north pole is 61/1000000.(a) determine the magnitude of the dipole moment of the earth (b)suppose an additional field due to the current in wire around the equator is used to make the net field at the pole zero,what is the...
Tuesday, May 1, 2012 at 12:59pm by musa

Physics- magnetism
The four wires in the figure are tilted at 20degrees with respect to the field direction. Each carries a 4.5 current and is 0.35m long. What is the magnitude and direction of the force on each wire? (the answer is in terms of B-magnetic field) Image: h t t p: //p osti mage. or...
Monday, March 7, 2011 at 10:28am by Bob

physics
A coil of wire consists of 20 turns, or loops, each of which has an area of 1.5 x 10-3 m 2. A magnetic field is perpendicular to the surface of each loop at all times, so that Ø = Øo = 0°. At time to = 0s, the magnitude of the field at the location of the ...
Saturday, September 17, 2011 at 5:34am by kait

Physics
An á-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.16 106 V and then enters a uniform magnetic field whose magnitude is 3.00 T. The á-particle moves perpendicular to the ...
Monday, March 25, 2013 at 2:02pm by Don

physics
The solar wind is a thin, hot gas given off by the sun. Charged particles in this gas enter the magnetic field of the earth and can experience a magnetic force. Suppose a charged particle traveling with a speed of 9.80 x 10^6 m/s encounters the earth's magnetic field at an...
Tuesday, February 8, 2011 at 7:24pm by aml

physics
Yes, if the magnetic field is changing with time OR if a conductor is moving through a steady magnetic field (which is what happens in some generators). An unchanging magnetic field can change the direction of current, but it cannot make moving charge change speed or "...
Wednesday, May 5, 2010 at 1:30pm by drwls

Electricity
suppose that you're facing a straight current carrying conductor, and the current is following toward you.the lines of magnetic force at any point in the magnetic field will act in? A)the same direction as the current. B)a clockwise direction. C)the direction opposite to ...
Saturday, August 20, 2005 at 5:05pm by angela

Physics
A circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
Friday, May 17, 2013 at 2:08pm by jane

physics
A 160 MeV proton, moving in the x-direction, enters a region in which there is a magnetic field. The proton experiences an acceleration of 5.5 X 10^12 m/s^2 in the y-direction. What can you say about the magnetic field?
Saturday, February 27, 2010 at 8:00pm by Sandhya

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
Marks: 4 A circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
Sunday, June 12, 2011 at 4:25pm by unknown

physics
A magnetic field is oriented at an angle of 42 degrees to the normal of a rectangular area 5.5 cm by 6.8 cm. If the magnetic flux through this surface has a magnitude of 4.8 x 10^-5 Tm^2, what is the strength of the magnetic field?
Wednesday, April 13, 2011 at 3:50pm by lovergirl

electric force/field
Three point charges, A = 2.2 µC, B = 7.5 µC, and C = -3.9 µC, are located at the corners of an equilateral triangle . Find the magnitude and direction of the electric field at the position of the 2.2 µC charge. magnitude = . N/C direction =
Monday, January 23, 2012 at 11:31am by physics

Physics
When a charged particle moves at an angle of 12° with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90°) with respect to this field will this particle, moving at the same speed, experience a magnetic force of ...
Monday, April 1, 2013 at 1:54am by Anonymous

physics
Consider two current carrying wires shown below. The current in the wire 1 is 4.5 A in the positive x direction. Find the magnitude and direction of the current in wire 2 if the net magnetic field at point A is to be 7.5 μT in the positive z direction (coming out of ...
Monday, July 25, 2011 at 4:01am by Chloe

Physics
1)When the currents in two parallel metal conductors are in the same direction, the conductors ___ each other. A)attract B)repel C)do not exert any force D)exert forces that are perpendicular to I got A. I couldnt find where it talks about directions of parallel metal ...
Friday, April 11, 2008 at 3:40pm by Jon

Physics
A 3 m long wire carrying a current of 1 A through a magnetic field of magnitude 17 T experiences a force of 8 kN entirely due to the current passing through the magnetic field. what angle does the wire make with the magnetic field?
Saturday, March 3, 2012 at 3:05pm by Fatih

Physics
An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.10 106 V and then enters a uniform magnetic field whose magnitude is 3.10 T. The -particle moves perpendicular to the magnetic field ...
Monday, February 6, 2012 at 5:10pm by DCM

physics
An electron is moving through a magnetic field whose magnitude is 8.70*10^-4 T. The electron experiences only a magnetic force and has an acceleration of magnitude 3.50*10^14 m/s^2. At a certain instant, it has a speed of 6.80*10^6m/s. Determine the angle (less than 90degrees...
Tuesday, April 1, 2008 at 2:47pm by Kelly

physics (Right Hand Rule Question)
A proton traveling due east in a region that contains only a magnetic field experiences a vertically upward force away from the surface of the earth. What is the direction of the magnetic field? a)North b)East c)South d)West e)Down I know I need to use the right hand rule to ...
Friday, February 17, 2012 at 12:39am by Daniel

physics
A circular wire loop has radius R = 0.327 m and carries current i = 0.291 A. The loop is placed in the xy-plane in a uniform magnetic field pointing in the negative z direction with magnitude 3.83 T, as shown in the figure. a) Determine the magnitude of the loop’s ...
Monday, December 10, 2012 at 7:55am by Anonymous

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
Yes, if the particle is not in motion, it will not experience a magnetic force (faraday's law) Yes to 2 too, using the third hand rule, fingers pointing in the direction magnetic field (north to south), thumb pointing in the direction of particle movement(in this case ...
Monday, December 7, 2009 at 8:14pm by ALan

Physics
An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Find the magnitude of the electric field. Find the direction of the electric field. If the the...
Monday, January 23, 2012 at 11:42pm by Cooper

physics
A ^9 Be nucleus containing four protons and five neutrons has a mass of 1.50×10−26 kg and is traveling vertically upward at 1.70 km/s. If this particle suddenly enters a horizontal magnetic field of 1.25 T pointing from west to east, find the direction of its ...
Wednesday, March 9, 2011 at 4:40pm by Becky

Physics
An electron moves at a speed of 5.4 106 m/s perpendicular to a constant magnetic field. The path is a circle of radius 1.0 10-3 m. (a) What is the magnitude of the field? T (b) Find the magnitude of the electron's acceleration. m/s2
Friday, September 28, 2007 at 3:55pm by Mary

physics
The magnetic field in a cyclotron is 0.50T. What is the magnitude of the magnetic force on a proton with velocity of 1.0 x 107 m/s in a plane perpendicular to the field?
Saturday, December 11, 2010 at 9:47pm by mohamed mokhbat

Physic please help!
I got the correct answer for part (a) but I am unsure of how to tackle part (b). Please help!!! Interactive LearningWare 22.2 at wiley/college/cutnell reviews the fundamental approach in problems such as this. A constant magnetic field passes through a single rectangular loop ...
Thursday, October 11, 2007 at 11:09pm by Mary

physics, science
if proton is fired from west is moved to north by magnetic field what is direction of magnetic field
Sunday, September 9, 2012 at 6:30am by alpana

physics
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T, it produces a Hall voltage of 0.660 µV. When it is used to measure an unknown magnetic field, the Hall voltage is 0.360 µV. What is the ...
Tuesday, April 5, 2011 at 10:01pm by Rachel

Physical Science
The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c)The charge of the particle d)The magnitude of the magnetic field e)Actually, it ...
Saturday, March 13, 2010 at 7:47pm by Stephanie

Physics
A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field heading due south. All ...
Thursday, April 4, 2013 at 8:56pm by Don

physics
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on the loop from above...
Tuesday, February 22, 2011 at 10:58pm by Kelly

Physics
A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R_1, and it carries a current I_0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with inner radius R_2 and outer radius R_3. It ...
Friday, April 5, 2013 at 5:42am by Phy

physics II
Suppose there is a double loop of wire (making 2 turns) is in the x-y plane centered at the origin. There is also uniform magnetic field is increasing at a constant rate in the positive z-direction.Viewed from the positive z-axis, in which direction is the induced magnetic ...
Sunday, August 1, 2010 at 12:44pm by oliander

physics
There is a 0.225 T magnetic field directed along the +x axis and a field of unknown magnitude along the +y axis. A particle carrying a charge of 7.20 10-5 C experiences a maximum force of 0.455 N when traveling at a speed of 2 104 m/s through the region where the fields are. ...
Sunday, February 10, 2008 at 3:39pm by rick

Physics
An electron moves with speed 2.46 x 105 m/s in a 1.39-T uniform magnetic field. At one instant, the electron is moving due west and experiences an upward magnetic force of 2.81 x 10−14 N. Caculate the magnetic field (angle). What is the direction of the magnetic ...
Thursday, March 1, 2012 at 8:43pm by Ashley

Physics
A charged particle, passing through a certain region of space, has a velocity whose magnitude and direction remain constant. (a) If it is known that the external magnetic field is zero everywhere in this region, can you conclude that the external electric field is also zero? ...
Monday, November 5, 2007 at 8:19pm by Mary

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