Sunday
December 11, 2016

# Search: Current/Magnetic force

Number of results: 24,933

PHYSICS
A closed loop carrying a current I lies in the xy plane. A uniform magnetic field is directed along the positive y axis. Which of the following statements best describes the total magnetic force on the current loop? a)The total magnetic force is proportional to the area the ...
December 14, 2013 by Aaka

Physics graphing
Im making a graph of magnetic force vs current, after investigating the magnetic force exerted on a current-carrying wire, and how it varies with current, length, magnetic field and angle. How do I know when to use the point (0,0) on the graph?
October 13, 2014 by Michelle

Physics
1)A current-carrying conductor is kept at right angles to the direction of a magnetic field. What happens to the force acting on the wire if the strength of the magnetic field doubles? the force is doubled. 2)How much current is required to produce a force of 0.96 N on a 75 cm...
April 11, 2008 by Jon

Physics
Please help me with these choose the best answers since I'm not sure of my answers. A current element produces a magnetic field in the region surrounding it. at any point in space, the magnetic field produced by this current element points in a direction that is a) radial from...
October 23, 2011 by Jessica

Physics
Please help me with these choose the best answers since I'm not sure of my answers. A current element produces a magnetic field in the region surrounding it. at any point in space, the magnetic field produced by this current element points in a direction that is a) radial from...
October 23, 2011 by Jessica

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 the ...
August 20, 2005 by angela

physics
A horizontal, straight wire carrying 12 A current from east to west is in the earth's magnetic field B. At this place, B is parallel to the surface of the earth, points north and its magnitude is 0.04mT. Determine the Magnetic Force on 1 m length of wire. If mass of this ...
March 23, 2016 by sanjay

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 ...
March 8, 2010 by Raul

jake
Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in [A. a counterclockwise direction.] B. a clockwise direction. C. the direction opposite to the ...
March 6, 2012 by physical science

physics
2.00 m long straight copper wire has a current of 8.0 A in it as it passes through a magnetic field. The magnitude of the force on the conductor is 2.00 N. The angle between the current and the magnetic field is 45°. What is the magnitude of the uniform magnetic field?
June 9, 2014 by grey

Physics
a magnetic rail gun is constucted to give a space vehicle its intial launch velocity, thereby reducing the amount of fuel the vehicle has to carry. it consist of two very long parallel rails across which is positioned a large current carrying crossbar 7.65 m long. The crossbar...
May 4, 2013 by Jane

Current/Magnetic force
A high voltage power line carries a current of 110 A at a location where the Earth's magnetic fields has a magnitude of 5.9 x 10^-4 T and points north at an angle of72 degrees below the horizontal (toward the earth surface). Find the direction and magnitude of the magnetic ...
April 5, 2012 by Matt

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?
March 3, 2012 by Fatih

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 ...
May 24, 2009 by sally

physics
A straight horizontal wire carries a current of 3.55 μA. A proton is moving above the wire in a direction parallel to it but opposite to the direction of the conventional current in the wire, at a constant velocity of 8.00×106 m/s. Assume that the force of gravity acts ...
November 15, 2014 by Lauren

magneismt
closed loop carrying a current lies in the plane. A uniform magnetic field is directed along the positive y axis. Which of the following statements best describes the total magnetic force on the current loop?
December 17, 2013 by mano

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 carries current 35.7 mA. ...
February 20, 2013 by Matteo

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:// ...
March 7, 2011 by Robert

physics
A high-voltage power line carries a current of 120 A at a location where the Earth's magnetic field has a magnitude of 0.577 G and points to the north, 70.8° below the horizontal. Calculate the magnitude of the magnetic force exerted on a 258 m length of wire if the current ...
October 11, 2010 by VJC

Physics
A horizontal wire of length 0.48 m, carrying a current of 6.8 A, is placed in a uniform external magnetic field. When the wire is horizontal, it experiences no magnetic force. When the wire is tilted upward at an angle of 19° it experiences a magnetic force of 4.00 10-3 N. ...
February 12, 2012 by Anne

physics
A horizontal wire of length 0.78 m, carrying a current of 6.8 A, is placed in a uniform external magnetic field. When the wire is horizontal, it experiences no magnetic force. When the wire is tilted upward at an angle of 20°, it experiences a magnetic force of 8.3 x 10-3 N. ...
February 24, 2012 by Anonymous

Physics
How the force on a current-carrying conductor can be used to measure the flux density of a magnetic field using a current balance? If the wire is attached to pivot point, the force creates a torque moving the wire. An indicator can be attached to the wire, and its motion a ...
February 16, 2007 by Ishani

physics
check which of the following modifications to a solenoid would be most likely to decrease the strength of its magnetic field? a. removing its iron rod core and increasing the number of coils b. increasing the current and reducing the number of coils c. reducing the number of ...
March 12, 2009 by physics

Psysics (Magnetism)
A current-carrying wire is placed in a uniform magnetic field, but there is no magnetic force on it. How is this possible?
April 24, 2012 by Brooke

physics
A conductor of length 2m carries a current of magnetic field of magnetic flux density 0.5T. The maximum force acting on it is ?
July 12, 2016 by taylor

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 ...
May 6, 2010 by lakhvir

physics
A horizontal ,straight wire carying 12.0A current from west to east is in the earth's magnetic field B.At this place,B is parallel to the surface of the earth ,points to the north and its magnitude is 0.04mT.Determine the magnetic force on 1m length of the wire.If mass of this...
February 25, 2016 by gourav bhardwaj

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 ...
June 12, 2006 by Nathaniel

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 of the ...
February 19, 2010 by Lanise

A metal bar with a length of 0.30 m and mass of 0.5 kg is free to slide (no friction) on a set of vertical rails. The rails and bar together have a resistance of 500 ohms. The rails lie in a horizontal magnetic field with a strength of 0.04 T. The mass falls under the combined...
May 7, 2012 by Rich

Physics
A current-carrying wire is oriented at right angles to a uniform magnetic field. If the length of the wire is 0.50 m and it experiences a force of 0.90 N while carrying a current of 4.0 A, what is the strength of the magnetic field? I did the work and got: 0.45 ...???
April 22, 2009 by sophie

physics
a current-carrying wire is oriented at right angles to a uniform magnetic field. if the lenght of the wire is 0.50m and it experiences a force at 0.90n while carrying a current of 4.0a. what is the strength of the magnetic field?
December 1, 2010 by mj

Physics
Help please A wire carries a current of 5.2 A from east to west through a 6.0 m section of wire in the earth's magnetic field of 1 × 10^-5 T at a location where the magnetic field points south. What is the magnitude of the magnetic force acting on the wire? 3.1 × 10^-4 N 3.1...
June 9, 2014 by Me and I

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 ...
February 27, 2010 by Sandhya

physics
A 42 mT magnetic field points due west. If a proton of kinetic energy 9x10E-12 J enters this field in an upward direction, find the magnetic force acting on the proton in magnitude and direction. What magnetic force would an electron experience due to Earth’s magnetic field ...
July 27, 2014 by seanmarch58

physics
A magnetic needle is disposed inside a horizontal coil. In the abscence of any electric current the needle is observed to get oriented in a direction perpendicular to the x'x of the coil. a) what is the direction of the terrestrial magnetic field. b) A current I is allowed in ...
May 19, 2016 by victoria

Physics
Help me with this please A 6.0 m section of wire carries a current of 5.2 A from east to west in the earth's magnetic field of 1.0 × 10^-5 T at a location where the magnetic field points south. In which direction does the magnetic force act on the wire? north south up down
June 4, 2014 by Me and I

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 direction of a ...
March 29, 2008 by Emily

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 6.70×10−2 and direction perpendicular to the rod. The magnetic force on the rod is measured by the ...
October 31, 2011 by Andrea

physics
The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's law.D) Two of these.E) ...
April 16, 2012 by Christy

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?
May 17, 2012 by ana

physics
A current-carrying conductor experiences a force upward in a magnetic field that acts perpendicularly to and out of the plane of the paper. What is direction of the current in the conductor? Choose one answer. a. The current in the conductor is toward right. b. The current in ...
June 4, 2011 by ashley --- HELP PLEASEE!!!

physics
The magnetic force on a straight 0.36 m segment of wire carrying a current of 4.5 A is 0.38 N. What is the magnitude of the component of the magnetic ﬁeld that is perpendicular to the wire? Answer in units of T
April 25, 2013 by Anonymous

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 couldn't find where it talks about directions of parallel metal ...
April 11, 2008 by Jon

physics check
A straight line 1.8m long carries a current of 13A and make an angle of 15º with a uniform magnetic field B=1.5T Calculate the magnetic force on the wire. Do we use F=I×L×B×sin in order to solve or no
May 31, 2016 by angy

physics
A wire 20cm long carry current of 2A is placed perpendicular to a uniform magnetic field. If a force of 0.8N acts on it. Calculate the value of the magnetic field intensity B
May 18, 2016 by Rose

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 ...
February 2, 2011 by anip

Physics current directions
I need help In studying the cross section of a straight current carrying wire, you notice that the magnetic field lines run counter-clockwise. What is the direction of the current in the wire and how do you know? 2. You are looking into a current carrying solenoid and notice ...
March 16, 2016 by Matt Damon

Physics current directions
I need help In studying the cross section of a straight current carrying wire, you notice that the magnetic field lines run counter-clockwise. What is the direction of the current in the wire and how do you know? 2. You are looking into a current carrying solenoid and notice ...
March 16, 2016 by Matt Damon

physics
The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's law.D) Two of these.E) ...
April 14, 2012 by Christy

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?
February 27, 2012 by Doryn

physics
Two insulated wires, each 2.70 m long, are taped together to form a two-wire unit that is 2.70 m long. One wire carries a current of 7.00 A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 77.0° relative to a ...
February 26, 2014 by Dee

physical
A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^-27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum displacement. b) ...
March 30, 2010 by Thomas

physics
A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^-27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum displacement. b) ...
March 30, 2010 by Thomas

Physics
1. You are looking into a current carrying solenoid and notice that the compass needle indicates that you are at the south end of the magnetic field. What is the direction of the current in the coil and how do you know? Would it be clockwise because current moves towards the ...
July 8, 2014 by Liz

Physics
The force on a wire is a maximum of 6.5E-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. If the pole faces have...
December 2, 2012 by Lorii

Physics
How would I express the magnetic force in terms of Fmax if the angle between the velocity and the magnetic field direction is 10 degrees? I know the magnetic force equation is F=qVBsin(theta), but how do I put it in terms of maximum force (Fmax)?
March 22, 2016 by Savannah

physics
A wire that is 70 cm long, carrying a current of 6.5 A, is at right angles to a uniform magnetic field. The magnitude of the force acting on the wire is 0.60 N. What is the strength of the magnetic field?
March 10, 2013 by Jeff

physics
A 6 N force acts on a current carrying wire of length 0.5 m that is placed in a 1.5 T external magnetic field. What is the current in the wire?
March 12, 2013 by Billy

Physics
A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor?
February 2, 2013 by fred

Physics
A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor?
February 11, 2013 by physics student

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?
March 7, 2013 by Anonymous

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?
March 10, 2013 by Jeff

physics
The force on a wire is a maximum of 7.33E-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. If the pole faces ...
October 11, 2010 by VJC

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 c. ...
June 4, 2011 by ashley --- HELP PLEASEE!!!

physics
Current passing through a conductor is increased from 10 A to 15 A. This decreases the strength of the magnetic field produced by the conductor. True The direction of the force on doubly ionized helium atoms (alpha particles) moving at right angles to a magnetic field is ...
May 24, 2009 by sally

Physics help
1. if the magnetic field is 2.1 m from a current carrying wire is 7.1x10^-5 T, what is the current flowing through the wire? 2. The electromagnet in an MRI has a magnetic field of 2.5 T. If there are 100 A of current running through the magnet, how many turns are there in a 1....
July 9, 2014 by Liz

Physics 2
List and explain briefly five magnetic devices found in the popular culture Are stationary charges affected be a magnetic field? What determines the direction of the magnetic force on a moving charge? What is the cause of all magnetic fields?
July 28, 2014 by seanmarch58

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?
May 5, 2010 by Javier

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?
November 10, 2009 by Anonymous

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 ...
February 27, 2012 by Doryn

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 ...
June 7, 2010 by Physics

Physics
A current-carrying conductor of length 0.8 m is placed perpendicular to the direction of the magnetic field of 0.6 Tesla. What is the value of the current in the conductor if the conductor experiences a force of 1.2 N?
January 27, 2013 by Physics fail

physics
An electric power line carries a current of 1600 A in a location where the earth's magnetic field is 4.0*10-5 T. The line makes an angle of 75° with respect to the field. Determine the magnitude of the magnetic force on a 130 m length of line.
February 10, 2008 by rick

physics
can electric current be generated by magnetic force?
May 5, 2010 by Larry

Electrical principles
a. What current is flowing in a 2.0m length of wire in the Earth's field of 55μT if it experiences a force of 10mN? b. A 2 wire cable is suppling 100 A to a DC motor. Each wire has a 2 mm insulation layer and there is also a 2 mm separate insulation layer between the 2 ...
August 14, 2015 by francis

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
May 21, 2009 by sally

physics
A square loop of wire of side 2.8 cm carries 3.0 A of current. A uniform magnetic field of magnitude 0.67 T makes an angle of 43° with the plane of the loop. (a) What is the magnitude of the torque on the loop? (b) What is the net magnetic force on the loop?
May 13, 2014 by caroline

Physics
A square loop of wire of side 3.0 cm carries 3.0 A of current. A uniform magnetic field of magnitude 0.67 T makes an angle of 37degree with the plane of the loop. What is the magnitude of the torque on the loop? What is the net magnetic force on the loop?
October 13, 2014 by Lala

physics
A 5.0 m portion of wire carries a current of 8.0 A from east to west. It experiences a magnetic field of 6.0 × 10^–4 T running from north to south. What is the magnitude and direction of the magnetic force on the wire? 2.4 × 10^–2 N upward 2.4 × 10^–2 N downward 1.2...
June 13, 2016 by anon

physics
The force on a wire is a maximum of 6.00\times 10^{ - 2} {\rm{N}} when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on.
March 25, 2012 by ben

physics
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 13, 2014 by Liz

Physics help
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 14, 2014 by Liz

physics
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 14, 2014 by Liz

physics
A particle with a charge of -4.0x10^-5 C, a mass of 2.0x10^-7 kg and a velocity of 6.0x10^4 m/s [W] is travelling perpendicularly through an external magnetic field such that the force of gravity is balanced by the magnetic force. Determine the direction and magnitude of the ...
July 15, 2014 by Liz

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 ...
July 27, 2009 by MP

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.)
June 12, 2011 by unknown

Physics 2
A 60 cm long wire is oriented from east to west directly above the equator and carries a current of 5 A (toward the east). What is the magnitude and direction of the magnetic force on this wire due to the earth’s magnetic field (30 µT oriented south and north)?
July 28, 2014 by seanmarch58

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
April 11, 2008 by Jon

science
a region of magnetic force is known as a _______________ magnetic field. You could also be thinking of magnetic pole.
January 17, 2007 by shaleem

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/Ät = 0.696 ...
March 7, 2013 by Anonymous

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° ...
April 1, 2013 by Anonymous

Physics
Suppose that the magnetic field o fthe Earth were due to a single current moving in a circle of radius 2988 km through the earth’s molten core. The strength of the Earth’s magnetic field on the surface near a magnetic pole is about 6.00E-5 T. About how large a current ...
October 23, 2011 by Jessica

physics 30
A current-carrying conductor that is 8.00x10^-2 m long is placed perpendicular to a magnetic field that has a strength of 6.00x10^-3 T. During a 3.00s time interval, 7.50x10^19 electrons pass a point in the conductor. The magnitude of the average magnetic force exerted on the ...
March 21, 2012 by sarah

urgent physics
A power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of 0.37 Gauss (0.37·10-4 T) and points due north, very nearly parallel to the ground. Find the direction and magnitude of the magnetic force exerted on a 270 m length of the...
November 4, 2011 by sonia

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！！
April 1, 2008 by Malisa

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...
February 22, 2011 by Kelly

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...
February 22, 2011 by Kelly

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...
February 22, 2011 by Kelly

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...
February 22, 2011 by Kelly

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