The block of mass (
M
)
is connected by thread which is wound on a pulley, free to rotate about fixed horizontal axis as shown. A uniform magnetic field B
exists in a horizontal plane. The disc is connected with the resistance R
as shown. Calculate the terminal velocity of the block if it was released from rest. Treat pulley as uniform metallic disc of radius L
.
Answers
Answered by
7
Explanation:
Terminal velocity is achieved when the torque due the MG force and the torque due to the induced magnetic force becomes equal. and omega will also be constant.
Equating the power due to generated EMF and power due to torque x omega, that is torque due to MG force multiplied with omega we get the answer.
Hope it's clear.
Good day.
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