Questions
A rod is falling vertically along a smooth rail in a uniform magnetic field as shown in the figure. If the mass of the rod is ‘m’ and length ‘l’ and resistance ‘R’, then the height through which it has to fall so that it attains terminal velocity
detailed solution
Correct option is D
ilB=mgBlvRlB=mgB2l22ghR=mgh=mgRB2l2212g=m2gR22.B4l4Talk to our academic expert!
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A copper rod AB of length 2m is moving in a uniform magnetic field of 1.5 T with a velocity of 3 m/s. The induced potential difference between ends A and B is
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