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The plane of a rectangular loop of wire 5 cm x 8 cm is parallel to...

The plane of a rectangular loop of wire 5 cm x 8 cm is parallel to a magnetic field whose flux density is 0.15 w/m^2. (a) If the loop carries a current of 10 amp, what torque acts on it? (b) What is the maximum torque that can be obtained with the same total length of wire carrying the same current in this magnetic field?

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