A circuit for an ac voltmeter utilizes a moving-coil meter


a circuit for an ac voltmeter utilizes a moving-coil meter that gives a full-scale reading when the average current flowing throught it is 1mA. The moving-coil meter has a 50-ohm resistance. Find the value of R that results in the meter indicating a full-scale reading when the input sine-wave voltahe vi is 20V peak -to-peak. (Hint : the average value of a half-sine waves is Vp/\(\pi\)

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Electrical Engineering: A circuit for an ac voltmeter utilizes a moving-coil meter
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