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If a choke coil of negligible resistance works on a 220 V source and a current of 5 mA flows through it, then the power loss in the choke coil is:

1. 0
2. 11 watt
3. 44 × 10^3 watt
4. 1.1 watt

Correct answer: 0

Solution

A choke coil with negligible resistance behaves like an ideal inductor. In an ideal inductor, the average power consumed over a cycle is zero because current and voltage are out of phase by \(90^\circ\).

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