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Square Current Loop


A uniform magnetic field B = 1.8 T points in the +x direction. A square loop with sides of length d = 20 cm, N=12 turns, and current I = 0.85 A/turn pivots without friction around a pin about the z-axis as shown in the figure below.(The z-axis points out of the page in the left hand panel.)
pic
A mass M is hung from one side of the loop (C or D), and the loop is in equilibrium when it makes an angle of 30° with respect to the x-z plane. Determine the size of the mass. Enter a positive number if it is hung from C and a negative number if it is hung from D. M =
kg
0 0
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Answer #1

m g 2. 9.8 749 kg

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