Alternating Current

Question: A resistance of 20 ohms is connected to a source of an alternating potential $V = 220\sin (100\pi t)$. The time taken by the current to change from its peak value to r.m.s value is

1) 0.2 sec

2) 0.25 sec

3) $25 \times {10^{ - 3}}$sec

4) $2.5 \times {10^{ - 3}}$sec

Solution:

Explanation: No Explanation

Alternating Current Voltage Power

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