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Power coil has a low value of ________

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Power coil has a low value of ________

(a) inductance

(b) capacitance

(c) resistance

(d) impedance

I had been asked this question in unit test.

This interesting question is from Low Power Factor Wattmeter topic in portion Measurement of Power and Related Parameters of Electrical Measurements

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Right answer is (c) resistance

The best I can explain: In a low power factor dynamometer type wattmeter, the pressure coil is designed in order to have a low value of resistance. The current flowing through the pressure coil is increased in order to raise the operating torque.

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