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MHT CET202123 Sep 2021Morning ShiftPhysicsAlternating CurrentActual

In the part of an a.c. circuit as shown, the resistance R =0.2 . At a certain instant ( V _ A - V _ B )=0.5 ~V , I =0.5 ~A and I t =8 ~A / s . The inductance of the coil is

Options

  1. A0.04 H
  2. B0.02 H
  3. C0.08 H
  4. D0.05 H

Correct answer

D. 0.05 H

Step-by-step solution

In the part of an a.c. circuit aligned & V_A-V_B=L d I d t +I R & 0.5=8 L+0.5 0.2 & 8 L=0.4 & L= 0.4 8 =0.05 H aligned

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