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Measurement and Instrumentation

Measurement and Instrumentation
______ movement is most expensive.

Moving iron
Dynamometer
None of the listed here
D'Arsonval movement

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Measurement and Instrumentation
The difference between the measured value and the true value is called

 gross error
 relative error
 probable error
 absolute error

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Measurement and Instrumentation
A moving coil ammeter has a uniform scale with 50 division and gives a full scale reading 10 A. The instrument can read up to (1/5)th of a scale division with a fair degree of certainty. What is the resolution of the instrument in mA?

 80 mA.
 50 mA.
 25 mA.
  40 mA.

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

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

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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

 0.1 µF.
 0.09 µF.
 10 µF.
 11 µF.

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Measurement and Instrumentation
Resistance of a VARISTOR varies with

 Voltage
 Current
 Temperature
 Both Voltage and Temperature

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MORE MCQ ON Measurement and Instrumentation

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