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JIPMER2004PhysicsElectromagnetic Induction

If the current 3 A flowing in the primary coil is made zero in 0.1 sec, the emf induced in the secondary coil is 1.5 volt. The mutual inductance between the coils is

Options

  1. A0.05 H
  2. B1.05 H
  3. C0.1 H
  4. D0.2 H

Correct answer

A. 0.05 H

Step-by-step solution

Here: e=1.5 volt i=0-3=-3 ~A , t=0.1 sec Now the emf induced in secondary coil e= M i t (numerically) or 1.5= M 3 0.1 or M= 1.5 0.1 3 =0.05 H

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