The figure shows a rectangular 20-turn coil of wire

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The figure shows a rectangular 20-turn coil of wire, of dimensions 10 cm by 5.0 cm. It carries a current of 0.10 A and is hinged along one long side. It is mounted in the xy plane, at angle θ = 30° to the direction of a uniform magnetic field of magnitude 0.50 T. In unit-vector notation, what is the torque acting on the coil about the hinge line?
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Fuck me, I failed 8 out of 8 attempts because I was in radians.

febreasy
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wait why did you do +++ instead of + - +

SofiaMartinez-jxuq
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at 4:55', you mentioned that we only want to x-component of the magnetic field, why? wouldn't we want to b-field that is perpendicular to the current-carrying wire?

ajnewyork
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The angle theta be between mu knot and the B field. That angle should be 120°

tonygerera