Wednesday
April 16, 2014

Search: A magnetic field has a magnitude of 10 T.

Number of results: 81,286

annie
You want to get an idea of the magnitude of magnetic fields produced by overhead power lines. You estimate that a transmission wire is about 11m above the ground. The local power company tells you that the line operates at 13kV and provide a maximum of 86MW to the local area. ...
Monday, December 14, 2009 at 4:41pm by physics help

Physics
If a proton is moving in a magnetic field with a speed of 4 106m/s and is executing uniform circular motion with a radius of 10 cm, what is the magnetic field?
Thursday, March 21, 2013 at 5:46pm by Lindsey

College Physics
A 22 turn circular coil of radius 5.00 cm and resistance 1.00 is placed in a magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies in time according to the expression B = 0.0100t + 0.0400t2, where t is in seconds and B is in...
Thursday, March 15, 2012 at 1:29am by Anand

Intro Physics
HI! Can you guide to which equation to use for this problem: An electron with the speed of 2 x 10^7 m/s enters a magnetic field with a velocity vector 25^0 away from the magnetic field direction. If it experiences an acceleration of 1.5 x 10^16 m/s^2, determine (absolute value...
Tuesday, March 2, 2010 at 11:17pm by John

Physics
Gold ions (Au+) are accelerate to high speeds using electric fields. These ions are then passed through a region where uniform electric E and magnetic B fields are present. If the ions are traveling to the right, which configuration of E and B will serve as a velocity selector...
Saturday, March 13, 2010 at 11:21am by Sandra

Physics
Gold ions (Au+) are accelerate to high speeds using electric fields. These ions are then passed through a region where uniform electric E and magnetic B fields are present. If the ions are traveling to the right, which configuration of E and B will serve as a velocity selector...
Monday, March 15, 2010 at 1:54pm by mm.

physics
A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.0910^−2 T. The charge on a proton is 1.6010−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 3.50*10^−14N? Answer in units of m/s.
Tuesday, April 19, 2011 at 12:15am by maria

physics
A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.0910^−2 T. The charge on a proton is 1.6010−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 3.50*10^−14N? Answer in units of m/s.
Tuesday, April 19, 2011 at 10:08pm by maria

magentism
6.A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? b. What is the magnitude of the torque on the loop in ...
Tuesday, November 19, 2013 at 11:39am by anton

magnetism
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?
Wednesday, November 20, 2013 at 1:05am by James

magnetism
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?
Wednesday, November 20, 2013 at 1:05am by James

electricity
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?
Saturday, November 23, 2013 at 1:03pm by ricky

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!!!
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
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 whose dimensions are 0.35 m 0.55 m. The magnetic field has a magnitude of 2.1 T and is inclined ...
Friday, October 5, 2007 at 11:53pm by Mary

physics
Consider a H-atom in a magnetic field. Sketch the possible transitions between the n = 3, l = 2 and n = 2, l = 1 levels. Which lines will not appear if we require that ml = 1,0 and -1 only? How many different frequencies will be seen in the spectrum? What will be the ...
Friday, May 20, 2011 at 3:16pm by alice

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

electromagnets
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?
Wednesday, November 20, 2013 at 2:14pm by Anton help needed

electricity and magnetism
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?
Friday, November 22, 2013 at 4:30am by Jason

Physics
The magnetic field inside a solenoid is 8.617 mT. If this solenoid sits with its central axis perpendicular to a 30 mT magnetic field, what is the magnitude of the torque on the solenoid
Sunday, October 12, 2008 at 5:47am by Sandhya

Physics
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 5:49pm by Johnny

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 and...
Thursday, May 6, 2010 at 4:27pm by lakhvir

physics
Gold ions (Au+) are accelerate to high speeds using electric fields. These ions are then passed through a region where uniform electric E and magnetic B fields are present. If the ions are traveling to the right, which configuration of E and B will serve as a velocity selector...
Saturday, March 13, 2010 at 10:05pm by lauren

physics
A uniform magnetic field points North; its magnitude is 1.5 T. A proton with kinetic energy 8.0x1013 J (5.0 MeV) is moving vertically downward in this field. What is the magnetic force acting on it? I have no idea where to start with this question, can I just have the formula...
Tuesday, November 23, 2010 at 9:58pm by Trace

physics-magnetsism
A conducting slider (thick line) moves without friction along a vertical U-shaped conducting track (thin line) in a magnetic field. When the switch has been closed for a long time, what is the magnetic field magnitude inside the inductor in Tesla?
Friday, December 6, 2013 at 3:23pm by A.J.J

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 neutral solid conducting cylinder rotates about its axis with angular speed 1600 rad/s. In addition, there is an external magnetic field of induction B directed along the cylinder's axis. What must the magnitude of the magnetic fieldin Teslasso that no electric field is ...
Sunday, April 21, 2013 at 6:15am by help

physics
A rectangular loop of wire with sides 0.196 and 0.584 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.723 T and is directed parallel to the normal of the loop's surface. In a time of 0.249 s, one...
Wednesday, February 6, 2013 at 10:05pm by PLEASE HELP

Physics
One component of a magnetic field has a magnitude of 0.080 T and points along the +x axis, while the other component has a magnitude of 0.034 T and points along the -y axis. A particle carrying a charge of +1.00 10-5 C is moving along the +z axis at a speed of 3.60 103 m/s. (a...
Monday, February 6, 2012 at 5:10pm by DCM

magnetic field
A square loop with resistance R=0.001 Ohms,mass 1.0 gram, and side length 1.0 m is falling into a region of uniform magnetic field. The magnetic field has strength 1 Gauss and is pointing out of the page. The speed of the loop just before it enters the region with the uniform ...
Monday, June 7, 2010 at 3:17pm by Physics

Physics electric
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque on the loop in N-m?
Friday, November 22, 2013 at 10:03am by Antony need some help here

Physics (due soon!)
One component of a magnetic field has a magnitude of 0.080 T and points along the +x axis, while the other component has a magnitude of 0.034 T and points along the -y axis. A particle carrying a charge of +1.00 10-5 C is moving along the +z axis at a speed of 3.60 103 m/s. (a...
Tuesday, February 7, 2012 at 5:54pm by DCM

Physics
One component of a magnetic field has a magnitude of 0.0445 T and points along the +x axis, while the other component has a magnitude of 0.0725 T and points along the -y axis. A particle carrying a charge of +1.01 10-5 C is moving along the +z axis at a speed of 4.18 103 ...
Monday, February 25, 2013 at 5:28pm by Anonymous

Physics
One component of a magnetic field has a magnitude of 0.0445 T and points along the +x axis, while the other component has a magnitude of 0.0725 T and points along the -y axis. A particle carrying a charge of +1.01 10-5 C is moving along the +z axis at a speed of 4.18 103 m...
Tuesday, February 26, 2013 at 8:21pm by Anonymous

physics
A 0.050-m-long wire is carrying a current of 2.0 A at right angles to a 0.15-T magnetic field. What is the magnitude of the force exerted by the magnetic field on the wire? A. 0.015 N B. 0.0037 N C. 0.67 N D. 6.0 N It's A right? 0.05*2*0.15
Thursday, May 21, 2009 at 11:05am by sally

physics question
A magnetic field fills the space around a magnet in which a magnetic force is exerted. The sources of magnetic field are moving charges.
Wednesday, May 16, 2012 at 11:27am by Elena

Physics
An aluminum wire with mass/unit length of p = 5*10^-4 kg/m lies on the ground, running east-west. The wire feels the earth's magnetic field, which has magnitude B = 5*10^-5 T. Assume the wire is in Columbia, where the Earth's magnetic field runs due north, parallel to ground. ...
Wednesday, November 28, 2012 at 7:59pm by Huy Nguyen

Physics 3
A 2.3-keV proton is moving horizontally and passes perpendicular to the Earths 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 proton? iii...
Wednesday, April 13, 2011 at 1:40pm by Ziera

Physics 3
A 2.3-keV proton is moving horizontally and passes perpendicular to the Earths 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 proton? iii...
Wednesday, April 13, 2011 at 1:55pm by Ziera

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 51.5 ...
Monday, April 1, 2013 at 2:44pm by Anonymous

Physics :(( help please TT
A neutral solid conducting cylinder rotates about its axis with angular speed 1600 rad/s. In addition, there is an external magnetic field of induction B directed along the cylinder's axis. What must the magnitude of the magnetic field in Teslas so that no electric field is ...
Tuesday, April 16, 2013 at 3:42am by OIan

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
A rectangular wire loop of dimensions ab, with a=3.5 cm and b=4.5 cm, is pulled parallel to side a at a constant speed v=4.3 m/sec into a region where the magnetic field, |B|=0.125 T, is uniform and perpendicular to the loop. The loop enters the magnetic field at time t=0. (a...
Saturday, April 6, 2013 at 3:21pm by abdul rahman

Physics
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.32 T. The field is then adjusted so that an electron will follow a circular path of the same radius when it is projected perpendicularly into the field with the same velocity that the proton ...
Thursday, September 29, 2011 at 10:09pm by Breanna

Physics
1)A 0.050 m long wire is carrying a current of 2.0 A at right angles to a 0.15 T magnetic field. What is the magnitude of the force exerted by the magnetic field on the wire? F=ILB (0.050)(2.0)(0.15) 0.015 N 2)Which device is used to measure very small currents? galvanometer
Friday, April 11, 2008 at 3:54pm by Jon

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 "generate...
Wednesday, May 5, 2010 at 1:30pm by drwls

Physics
Scroll all the way to the bottom in the link I'll provide below and there will be diagrams for which my questions/answers are based on. I'm having trouble applying the "right hand rule" to 1. c) Also, for 1.a) I think the magnetic field lines should go around the conductor (i....
Monday, June 10, 2013 at 6:31pm by Alice

math/science
I dont quite follow what you are doing. Normally, magnetic flux needs area that the wire sweeps thru in a given time, if you are working induction problems. Either the wire is moving,or the magnetic field is changing with time. If the wire is moving in a constant magnetic ...
Friday, February 20, 2009 at 6:48am by bobpursley

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
The key ingredient in anything magnetic is which of the following?. A) moving electric charge.B) magnetic domains that are aligned C) pairs of magnetic poles.D) the surrounding magnetic field.E) magnetic polarization.
Saturday, April 14, 2012 at 4:53pm by Christy

Physics
An infinite straight wire carrying a current I=5 A flowing to the right is placed above a rectangular loop of wire with width w=11 cm and length L=27 cm, as shown in the figure below. The distance from the infinite wire to the closest side of the rectangle is h=1.7 cm. The ...
Friday, June 14, 2013 at 2:58pm by Annoyingmous

Physics
An infinite straight wire carrying a current I=5 A flowing to the right is placed above a rectangular loop of wire with width w=11 cm and length L=27 cm, as shown in the figure below. The distance from the infinite wire to the closest side of the rectangle is h=1.7 cm. The ...
Saturday, June 15, 2013 at 4:35am by Annoyingmous

PHYSICS
A straight 1.2 m length iron rod is moved at 10 m/s through the earth's magnetic field at a location where it has magnitude 1.0 105 T. What is the magnitude of the induced emf between one end of the wire and the other end? What formula do I use?
Sunday, May 27, 2012 at 4:10pm by Pat

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
One component of a magnetic field has a magnitude of 0.046 T and points along the +x axis, while the other component has a magnitude of 0.066 T and points along the -y axis. A particle carrying a charge of +7.50*10^-5 C is moving along the +z axis at a speed of 3.20*10^3 m/s...
Monday, February 26, 2007 at 11:26am by Anna

physics
A conducting bar slides without friction on two parallel horizontal rails that are 50 cm apart and connected by a wire at one end. The resistance of the bar and the rails is constant and equal to 0.10 􀌛. A uniform magnetic field is perpendicular to the plane of the ...
Saturday, June 25, 2011 at 3:16am by Vlady

physics
A magnetic field is perpendicular to the plane of a single turn circular coil. The magnitude of the field is changing so that the emf of 0.80 V and a current of 3.2 A are induced in the coil. The wire is then re-formed into a single turn square coil, which is used in the same ...
Thursday, October 8, 2009 at 11:57pm by sandy

physics
A Bainbridge mass spectrometer is shown in the figure. A charged particle with mass m, charge |q|=3.2 10−19C and speed v=3 10@6 m/s enters from the bottom of the figure and traces out the trajectory shown in the fields shown. The only electric field E=11 103 V/m is in...
Friday, April 26, 2013 at 11:18am by sat

physics
Particle 1 and particle 2 have masses of m1 = 1.510-8 kg and m2 = 6.210-8 kg, but they carry the same charge q. The two particles accelerate from rest through the same electric potential difference V and enter the same magnetic field, which has a magnitude B. The particles ...
Wednesday, December 5, 2012 at 4:35pm by Anonymous

Physics 2
The magnitude of torque is M=pBsinα, where p is the magnetic moment, B is magnetic field. Max M=pB. p=IA, where A is the area of the loop. If the length of the wire is L=2πR, the radius is R=L/2π, the area is A= πR^2=L^2/4 π=1.62610-4 (m^2) Max M...
Saturday, February 25, 2012 at 4:37pm by Elena

physics
A current I=2 Amperes flows in a circular single loop coil of radius R=10 cm. (a) Evaluate the magnitude of the magnetic field (in Tesla) at a point P on the axis of the coil, and a distance z =5 cm away from the plane of the coil itself. Now consider two N-turn circular coils...
Sunday, April 7, 2013 at 1:39pm by abdul rahman

physics
A proton moves perpendicularly to a magnetic field that has a magnitude of 1.2210−2 T. The charge on a proton is 1.6010−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 4.79 10−14N? Answer in units of m/s
Thursday, April 25, 2013 at 1:33am by Anonymous

physics
Use the Biot Savart law to compute the magnetic field at the center of a metallic ring. the ring has a radius of 10^-6 m and is connected to two infinite wires. the current in the wires is 1 amp. the ring is lying in the [x,y,z= 0 ] plane. the first wire is attached to the ...
Tuesday, May 21, 2013 at 12:32pm by karan

Physics
A proton moves eastward in the plane of Earths magnetic equator so that its distance from the ground remains constant. What is the speed of the proton if Earths magnetic field points north and has a magnitude of 5.2 10−5 T? The acceleration of gravity is 9.81 m/s2 ...
Wednesday, March 6, 2013 at 5:00pm by alice

Physics
A loop wire is in a magnetic field of 2T. What is the magnitude of the magnetic flux? 0.2 m B = 2T 30 degrees and n is pointing out of the page
Monday, August 3, 2009 at 8:08pm by TJ

physics
if the speed of the electron is 3.0x10^3 meters per second and the magnitude of the magnetic field is 3.0x10^5T then the value of the magnetic force is what?
Wednesday, April 28, 2010 at 6:45pm by Anonymous

physics
the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire?
Thursday, May 17, 2012 at 9:10am by ana

PHYSICS
A circular loop of flexible iron wire has an initial circumference of 168cm , but its circumference is decreasing at a constant rate of 15.0cm/s due to a tangential pull on the wire. The loop is in a constant uniform magnetic field of magnitude 1.00T , which is oriented ...
Saturday, September 8, 2012 at 1:02am by sarah

PHYSICS I NEED HELP
Consider free protons following a circular path in a uniform magnetic field with a radius of 1 meter. At t = 0, the magnitude of the uniform magnetic field begins to increase at 0.001 Tesla/second. Enter the tangential acceleration of the protons in meters/second^2: positive ...
Wednesday, December 11, 2013 at 12:26pm by Aaka

physics
1.The earth is constantly bombarded by cosmic rays, which are charged particles from outer space. moving vertically Find the force on one such cosmic ray− a proton that is instantaneously downward at 5.04 107 m/s at a point outside the atmosphere over New York, where the...
Tuesday, February 23, 2010 at 7:23pm by Sandhya

Physics
A charged particle moves into a region of uniform magnetic field B, goes through half a circle, and then exits that region. The particle is either a proton or an electron (you must decide which). It spends 155 ns in the region. a) What is the magnitude of B? b)If the particle ...
Wednesday, November 17, 2010 at 11:04pm by LA

IUP
A Circular metal loop is 28.0 cm in diameter. how large a current must flow through this metal so that the magnetic field at its center is equal to the earths magnetic field of 5.00*10-5T?
Wednesday, February 29, 2012 at 7:25pm by jenna

KUSSSESSS
Consider a wire of length L = 0.30 m that runs north-south on a horizontal surface. There is a current of I = 0.50 A flowing north in the wire. (The rest of the circuit, which actually delivers this current, is not shown.) The Earth's magnetic field at this location has a ...
Wednesday, February 2, 2011 at 11:53pm by anip

Physics
You have arranged that the magnetic field in a particular region of space is due North with a value of 0.009 T. An electron enters the field traveling to the west with a speed of 0.09 of the speed of light. As a result, the electron experiences a magnetic force, which is ...
Monday, April 19, 2010 at 12:24am by Steve

Physics
Suppose that the electric field of an electromagnetic wave decreases in magnitude. Does the magnetic field increase, decrease, or remain the same? Account for your answer.
Monday, November 5, 2007 at 8:21pm by Mary

Physics
Please give ans for Q5 for values I am getting them last chance please What is the total magnetic flux through the loop (in Tesla m ) when is 62 cm. Include only the magnetic flux associated with the external field (i.e. ignore the flux associated with the magnetic self-field ...
Saturday, June 15, 2013 at 4:35am by P

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 loops magnetic ...
Monday, December 10, 2012 at 7:55am by Anonymous

Physics
An electrostatic force of 5 N exists between two identical point charges, each of mass 0.01 g, placed 4 mm apart. a.) Find the magnitude of each charge. b.) One of these charges is placed into a magnetic field. Assuming that the charge has a speed of 50 m/s and travels a ...
Monday, June 12, 2006 at 3:26pm by Nathaniel

Physics
A charged particle with mass m, charge |q|=6.4 10−19C and speed v=3 106 m/s enters from the bottom of the figure and traces out the trajectory shown in the fields shown. The only electric field E=5 103 V/m is in the region where the trajectory of the charge is a ...
Saturday, April 27, 2013 at 4:38pm by tanvir ali

The Ohio State University
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.74 V and a current of 3.8 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same ...
Monday, May 14, 2012 at 10:05pm by Ryan

Physics
A uniform magnetic field points north; its magnitude is 3.5 T. A proton with kinetic energy 6.0 10-13 J is moving vertically downward in this field. What is the magnetic force acting on it? This is what I've done. The answer is incorrect. Please help me find out why. 3.5T to...
Wednesday, September 22, 2010 at 8:19pm by Sar

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 field? ...
Thursday, March 1, 2012 at 8:43pm by Ashley

Physics
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.63 V and a current of 2.7 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same ...
Monday, May 14, 2012 at 1:22pm by M

physics
Electron enters the magnetic field perpendicular to the magnetic field, therefore, it moves with centripetal acceleration along the curvilinear path due to Lorentz force action ma=qvB sin α. Since α=90º, sin α=1; q=e; v=at.=> ma =evB=eatB =>...
Monday, July 30, 2012 at 10:22pm by Elena

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 Amperes law solve for the magnitude of the ...
Thursday, March 11, 2010 at 7:07pm by joshua

Physics
A 200-loop coil of cross sectional area 8.5 lies in the plane of the paper. Directed out of the plane of the paper is a magnetic field of 0.06 T. The field out of the paper decreases to 0.02 T in 12 milliseconds. (a) What is the magnitude of the change in magnetic flux ...
Tuesday, March 12, 2013 at 9:18am by Liz

Physics
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.93 V and a current of 2.7 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which is used in the same ...
Thursday, February 17, 2011 at 5:44pm by Emily

PHYSICS 2
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.98 V and a current of 2.1 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same ...
Sunday, February 10, 2013 at 8:29pm by PLEASE HELP

Physics
An electron with a velocity of v = (3 x + 4 y + 2 z) 106m/s enters a region where there is both a magnetic field and an electric field. The magnetic field is B = (1 x - 2 y + 4 z)T. If the electron experiences no force as it moves, calculate the electric field.
Thursday, March 21, 2013 at 4:16pm by Lindsey

Physics
An electron with a velocity of v = (3 x + 4 y + 2 z) 106m/s enters a region where there is both a magnetic field and an electric field. The magnetic field is B = (1 x - 2 y + 4 z)T. If the electron experiences no force as it moves, calculate the electric field.
Thursday, March 21, 2013 at 4:17pm by Lindsey

physics
A horizontal rod with a length of 0.250 is mounted on a balance and carries a current. At the location of the rod a uniform horizontal magnetic field has a magnitude of 6.7010−2 and direction perpendicular to the rod. The magnetic force on the rod is measured by the ...
Monday, October 31, 2011 at 10:21pm by Andrea

SIMPLE physics!!!!!!
A neutral solid conducting cylinder rotates about its axis with angular speed 1600 rad/s. In addition, there is an external magnetic field of induction B directed along the cylinder's axis. What must the magnitude of the magnetic field in Teslas so that no electric field is ...
Thursday, April 18, 2013 at 4:21am by HELP ME...uRGENT!

Physics
An electron has a kinetic energy of 7.00 10-17 J. It moves on a circular path that is perpendicular to a uniform magnetic field of magnitude 4.40 10-5 T. Determine the radius of the path?
Thursday, April 4, 2013 at 2:31pm by Don

physics
A ^9 Be nucleus containing four protons and five neutrons has a mass of 1.5010−26 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

college
Two copper rings are dropped from a region where no magnetic field exists into a region where a strong magnetic field exists. The rings are identical except for a break in one of them. What can happen to the rings' motion as they fall through the magnetic field?
Tuesday, April 13, 2010 at 8:52pm by Jordan

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

physics
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.7 x 10^-6 T. What is the intensity S of the wave?
Monday, March 26, 2012 at 5:40pm by Sarah

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 4:12pm by Don

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!!!

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

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