- 178

- 0

**1. Homework Statement**

You've got a circular loop with a steady current I and radius 'a' a distance r from a square current carrying loop with sides of 'b' and current I, r >>> a or b(and they're arranged in such a way as you can think of the circular loop's dipole as pointing up, and the square loop point right)

What's the torque ON the square loop caused by the circular loop, and the square loop's final orientation assuming it's free to move

**2. Homework Equations**

A couple of ways to get B, I figure the curl of A, and I have A for a dipole, which will I use with the circular loop

Then the torque on a dipole in a B field is B x m, where m is the dipole, in this case the square loop's dipole

Err, I guess that was my attempt pretty much, I just need to make sure that's the right way to do it