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Measurement and Instrumentation

Measurement and Instrumentation
The form factor in AC is the ratio of

Peak value to rms value
Peak value to average value
Rms value to peak value
Rms value to average value

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Measurement and Instrumentation
The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be

 0.2% more.
 0.2% less.
 0.4 more.
 0.4% less.

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Measurement and Instrumentation
The transfer instrument which is used for standardization of a polar type AC potentiometer is

 an electrostatic instrument.
 a dynamometer instrument.
 a moving coil instrument.
 a thermal instrument.

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Measurement and Instrumentation
The household energymeter is

An integrating instrument
An indicating instrument
A recording instrument
None of the listed here

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Measurement and Instrumentation
Which instrument has identical calibration for ac as well as dc values?

Moving coil type
Moving iron type
Hot wire type
Induction type

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Measurement and Instrumentation
In induction type ammeter, _____ damping is provided.

None of the listed here
Fluid friction
Eaddy current
Air friction

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