A direct current of 5A flow through a 0.2H inductor. Calculate the energy stored in…

A direct current of 5A flow through a 0.2H inductor. Calculate the energy stored in the inductor

  • A.
    0.5J
  • B.
    1.0J
  • C.
    2.5J
  • D.
    5.0J
Correct Answer: Option C
Explanation

P = (frac{1}{2} I^2 L)

 = 5(^2 times) 0.2 (times) (frac{1}{2})

= 2.5J

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