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Measurement and Instrumentation

Measurement and Instrumentation
In two wattmeter method of power measurement if the total power is measured by one wattmeter only then power factor of the system is

 0.
 0.5.
 none of above.
 1.

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Measurement and Instrumentation
Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be

 11 µF.
 10 µF.
 0.09 µF.
 0.1 µF.

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Measurement and Instrumentation
Induction wattmeter can measure

Both AC and DC
Ac power only
None of the listed here
Dc power only

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Measurement and Instrumentation
The smallest change in measured variable to which instrument will respond is

 sensitivity.
 precision.
 accuracy.
  resolution.

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Measurement and Instrumentation
A galvanometer has

Spring coil damping
Fluid friction damping
Eddy current damping
Air friction damping

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Measurement and Instrumentation
What is the name of physical quantities which are independent of each other?

 Fundamental quantity
 Derived quantity
 Numerical quantity
None of these

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