An AC voltage of V=220√2sin(100πt+π2) is applied across a DC voltmeter, its reading will be:
220√2v
√2v
220v
zero
A
220√2v
B
√2v
C
zero
D
220v
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Solution
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A DC Voltmeter measures only average value. Incase of AC average voltage will be zero. Hence DC voltmeter reads zero Volt
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