Induction wattmeter can be used in ?->(Show Answer!)

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1. Induction wattmeter can be used in

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MCQ->Consider the following statements as regards induction and dynamometer wattmeters Dynamometer wattmeters can be used for dc only.Induction wattmeter has higher torque and dynamometer wattmeter.Induction wattmeter is less accurate, has more power consumption and more weight than dynamometer wattmeter. Which of the above statements are correct?....

MCQ->Assertion (A): Energy meters use induction principle.Reason (R): Induction wattmeter is less accurate than a dynamometer wattmeter.

MCQ->Assertion (A): A low power factor wattmeter has special constructional features to ensure accurate measurement.Reason (R): Extension of wattmeter range in dc circuit can be easily done by using current and potential transformer.

MCQ->Assertion (A): A 3 phase wattmeter consists of two wattmeters mounted in one case.Reason (R): Power measurement in a 3 phase circuit can be conveniently done by two wattmeter method.

MCQ->Assertion (A): When a wattmeter is used for low impedance loads, the pressure coil is connected across the load.Reason (R): A wattmeter measures apparent power.

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