An ac voltmeter reads $220 V .$ If the line frequency is $50 H z,$ then the equation for the line voltage is

V = 220 sin 50 t

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V = 220 sin 100 t

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V = 311 sin 50 π t

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V = 311 sin 100 π t

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Solution

The correct option is D $V = 311 sin 100 π t$
$V_{r m s} = 220 v o l t s$
$V_{0} = 220 \sqrt{2} = 311 v o l t s$
Answer is $V = 311 sin 100 π t$

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An ac voltmeter reads 220 V. If the line frequency is 50 Hz, then the equation for the line voltage is

The correct option is D V=311sin100πtVrms=220 voltsV0=220√2=311 voltsAnswer is V=311sin100πt

An ac voltmeter reads $220 V .$ If the line frequency is $50 H z,$ then the equation for the line voltage is

The correct option is D $V = 311 sin 100 π t$
$V_{r m s} = 220 v o l t s$
$V_{0} = 220 \sqrt{2} = 311 v o l t s$
Answer is $V = 311 sin 100 π t$