A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two orientations?
I tried the formula the answer 0.125J is wrong again. please tell me if there is another way to calculate the change in Potential energy?
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