ISRO Electrical Engineering (EE) 2017 - Question 1

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An inductance of one H carrying a current of two amperes will store the energy of

  • A. 2 watts
  • B. 2 joules
  • C. 4 watts
  • D. 4 joules

Answer: B. 2 joules

Explanation: Magnetic energy stored in an inductor W = ½·L·I² = ½×1×2² = 2 J (joules).

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