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Magnetic force on a wire

by sdevoe
Tags: force, magnetic, wire
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sdevoe
#1
Mar26-09, 09:10 AM
P: 21
1. The problem statement, all variables and given/known data
A wire is oriented along the x-axis. It is connected to two batteries, and a conventional current of 2.3 A runs through the wire, in the +x direction. Along 0.27 m of the length of the wire there is a magnetic field of 0.82 tesla in the +y direction, due to a large magnet nearby. At other locations in the circuit, the magnetic field due to external sources is negligible.
What is direction and magnitude of the magnetic force on the wire?


2. Relevant equations
no clue

3. The attempt at a solution
nothing?
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danago
#2
Mar26-09, 09:12 AM
PF Gold
P: 1,125
There is an equation that relates the force on a wire of length L to the current I flowing and the magnetic field strength B. See if you can find it.
sdevoe
#3
Mar26-09, 09:21 AM
P: 21
F=I*LxB?

Redbelly98
#4
Mar26-09, 07:44 PM
Mentor
Redbelly98's Avatar
P: 12,069
Magnetic force on a wire

Yes, that's the one.

The tricky part is what to use for L.


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