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Measurement and Instrumentation

Measurement and Instrumentation
The material of the shunt should have _______ temperature co-efficient of resistance.

Positive
Negligible
Negative
None of the listed here

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Measurement and Instrumentation
For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from

 The same source as the unknown voltage.
 Any of above.
 A battery.
 A source other than the source of unknown voltage.

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Measurement and Instrumentation
The rectifier instrument is not free from

All of the listed here
Temperature error
Wave shape error
Frequency error

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Measurement and Instrumentation
Basically potential meter is a device for

Comparing two voltages
Measuring a current
Comparing two currents
Measuring a voltage

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Measurement and Instrumentation
An Ohmmeter is a

Dynamometer instrument
Moving iron instrument
Moving coil instrument
None of the listed here

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Measurement and Instrumentation
A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

 1 µNm.
 100 µNm.
  200 µNm.
 2 µNm.

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