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AC Voltage Measurement An ac voltmeter measurement indicates the amplitude of a sinusoid and not...

AC Voltage Measurement An ac voltmeter measurement indicates the amplitude of a sinusoid and not...

AC Voltage Measurement An ac voltmeter measurement indicates the amplitude of a sinusoid and not its phase angle. The magnitude and phase can be inferred by making several measurements and using KVL. For example, Figure P8–90 shows a relay coil of unknown resistance and inductance. The following ac voltmeter readings are taken with the circuit operating in the sinusoidal steady state at  and L.

 

manish jayant 27-Jul-2020

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