An $ac$ source is rated at $220V, 50 Hz.$ The time taken for voltage to change from its peak value to zero is.....$sec$
An $ac$ source is rated at $220V, 50 Hz.$ The time taken for voltage to change from its peak value to zero is.....$sec$
- A
$50$
- B
$0.02$
- C
$5$
- D
$5 \times {10^{ - 3}}$
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