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## Homework Statement

The current loop is in the y-z plane. The direction of the magnetic field is in the z-direction.

A) Which way is the torque on the current loop?

B) If the current is 4 amps and the magnetic field strength is 2.5 Tesla, what is the magnitude of the torque?

here is the picture (which I drew): http://twitpic.com/7e0zv9 [Broken]

## Homework Equations

Right Hand Rule 2

T=IAB, T=NIABsinθ. The torque formulas I have necessitate finding an area of the current loop. But, as you can see from the picture (which displays all info. given) there is no way to find the area.

## The Attempt at a Solution

A) Well, the loop is parallel to the field. If I use the right hand rule 2, the direction of the torque would be into the page, would it not?

B) I feel that I am missing something crucial. I have done a few problems similar to this one, but I was always given some number to work with to find the area of the current loop.

Seriously, ANY help is very much appreciated. Thank you.

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