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The resistance of two coils of a watt-meter are 0 0...

This question belongs to Electronics And Communications Engineering Measurement And Instrumentation
Measurement and Instrumentation
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The resistance of two coils of a watt-meter are 0.0 Ω and 100 Ω respectively and both are non-inductive. The current through a resistance load is 20 A and the voltage across it is 30 V. In one of the two ways of connecting the voltage coil, the error in the reading would be

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Correct Answer: Option D
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