Compound alternating current circuits

Explanation of question 10

A capacitor and resistor are connected in series across an AC supply, and take a current of 8A. When connected to a DC supply, the current will be

  1. infinitely high
  2. 8A
  3. zero

The answer is :- 4 In a dc supply the capacitor has infinitely high impedance, thus no current will flow.

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