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Question: Answered & Verified by Expert
A current of 2A is increasing at a rate of 4 A/s through a coil of inductance 2 H. The energy stored in the inductor per unit time in given instant is
PhysicsElectromagnetic InductionNEET
Options:
  • A 2 J/s
  • B 1 J/s
  • C 16 J/s
  • D 4 J/s
Solution:
1726 Upvotes Verified Answer
The correct answer is: 16 J/s
Potential difference across coil is V = L di dt

or     V = (2) (4) = 8V

Now energy stored per unit time

           = power = Vi

           = (8) (2) = 16 J/s

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