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The energy stored in an inductor of inductance 5mH when a current of 6A flows...

Physics
JAMB 2004
The energy stored in an inductor of inductance 5mH when a current of 6A flows through it is
  • A. 9.0 x 10-3J
  • B. 9.0 x 10-2J
  • C. 1.4 x 10-2J
  • D. 1.8 x 10-3J
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Correct Answer: Option B
Explanation
Energy stored in a coil of inductance, L, and carry a current, I is given by
E = 1/2 L I2
= 1/2 x 5 x 10-3 x 6 x 6
= 9.0 x 10-2J

There is an explanation video available below.

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Explanation Video

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