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

[PLAIN]http://img521.imageshack.us/img521/5139/physicsproblem.jpg [Broken]

**2. Relevant equations**

**F**in uniform magnetic field = I

_{M}**L**x

**B**

**m**= I A

^{2}where A is the area, direction given by Right Hand Rule (perpendicular to plane of loop)

**T**=

**m**x

**B**

**3. The attempt at a solution**

I need to know if my answers are correct..need fast confirmation/help.

a) using the 1st equation in the "Relevant equations"

i added all forces and it equaled to zero. but I am not sure if the unit vectors with

1/ sqrt(2) should play a role in the calculation.. I just used the i hat and k hat without the 1 / sqrt(2).. is this ok?

or...am i supposed to factor out the 1 / sqrt(2) for the magnitude of B so it's like 1/sqrt(2)B

_{0}?

b) using 2nd equation in "Relevant Equations":

**m**= I

_{0}a

^{2}B

_{0}k hat

c)

**T**= a

^{2}I

_{0}B

_{0}j hat

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