# Magnetism problem

1. May 3, 2007

### neelakash

1. The problem statement, all variables and given/known data

A long straight conductor carries a current I.Determine force per unit length of the conductor when it is placed in a unifrom magnetic field B.

2. Relevant equations

3. The attempt at a solution

I got BI sin(theta) where theta is the angle between wire and the B field.
Please check if I am correct.

2. May 3, 2007

### G01

I believe you are correct, since:

$$F/L = \vec{I} X \vec{B} = IB\sin\theta$$