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Q. An emf of 5 V is persuading when the current in the coil changes at the rate of 100 As-1. Find the coefficient of self induction.
Solution:
Induced emf e = - L dI/dt
Coefficient of self induction L = - e / (dI/dt)
= - 5 / 100
L = 0.05 H
Q Define: mobility. Give its unit. The mobility is defined as the drift velocity obtains per unit electric field. The unit of a mobility m 2 V 1s 1.
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