An ac voltmeter uses the circle shown below where the PMMC meter has an internal resistance of 100 Ω and requires a DC current of 1 mA for full scale deflection. Assuming the diodes to be ideal, the value of Rs to obtain full scale deflection with 100 V (ac rms) applied to the input terminal would be

An ac voltmeter uses the circle shown below where the PMMC meter has a

1.	An ac voltmeter uses the circle shown below where the PMMC meter has an internal resistance of 100 Ω and requires a DC current of 1 mA for full scale deflection. Assuming the diodes to be ideal, the value of Rs to obtain full scale deflection with 100 V (ac rms) applied to the input terminal would be
A.	80 kΩ
B.	89 kΩ
C.	89.9 kΩ
D.	90 kΩ
Answer» D. 90 kΩ

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