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MHT CET202121 Sep 2021Morning ShiftPhysicsElectromagnetic InductionActual

The magnetic potential energy stored in a certain inductor is 25 ~mJ , when the current in the inductor is 50 ~mA . What is inductance?

Options

  1. A2.00 H
  2. B0.20 H
  3. C200 H
  4. D20 H

Correct answer

D. 20 H

Step-by-step solution

Magnetic potential energy U = 1 2 LI ^2 aligned & L = 2 U I ^2 = 2 25 10⁻³ (50 10⁻³ )^2 & =20 H aligned

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