Measurement and Instrumentation
To measure ac as well as dc power, we use

Sometimes induction and sometimes dynamometer wattmeter
Dynamometer wattmeter
None of the listed here
Induction wattmeter

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Measurement and Instrumentation
Why is a MISC meter not recommended for DC measurement?

The meter does not respond to DC signals
The error is high due to hysteresis effect
The error is high due to eddy current effect
The meter is calibrated for AC and it’s error for DC would be high

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