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Calculate the value measured by PMMC when a sinusoidal voltage signal V(t)=20sin(ωt) is applied to it.

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Calculate the value measured by PMMC when a sinusoidal voltage signal V(t)=20sin(ωt) is applied to it.

(a) 1 V

(b) 2 V

(c) 6 V

(d) 0 V

This question was posed to me in examination.

This intriguing question comes from Electrical Drive Systems topic in chapter Electrical Drive Systems and Components of Electric Drives

1 Answer

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Right answer is (d) 0 V

Best explanation: Permanent magnet moving coil instrument measures the average value of the input signal. The average value of the sinusoidal signal is 0 V.

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