Simple alternating current circuits

Explanation of question 6

A coil of negligible resistance has an inductance of 0.5H. It is connected across a 6V, 50Hz supply. The power dissipated in the coil will be

  1. 15.7W
  2. 2.62W
  3. 38mW
  4. zero

The answer is :- 4 No power is dissipated in a pure inductor.

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