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A circular current loop lies in the xy plane and a square current loop lies in the xz plane as shown in the
figure below. The radius of the circular loop is a. The side length of the square loop is S. The distance
betwecn the two loop is r, which is much larger than a and S. r>>a, r>>S.
(1) Calculate the torque exerted on the square loop.
(2) If the square loop is free to rotate, what will its equilibrium orientation be?
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