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Measurement and Instrumentation

Measurement and Instrumentation
A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt.

Ammeter
Voltmeter
Ballastic galvanometer
Flux meter

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Measurement and Instrumentation
A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage

 3.33 %.
 1 %.
 2 %.
  2.66 %.

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Measurement and Instrumentation
A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is

 100.
 110.
 10.
 11.

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Measurement and Instrumentation
Swamping resistance is used to compensate

 error due to temperature true variations.
 error due to strong magnetic field.
 none of these.
 both A and B.

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Measurement and Instrumentation
The high torque to weight ratio in an analog indicating instrument indicates

 nothing related to friction loss.
 high friction loss.
 none of these.
 low friction loss.

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Measurement and Instrumentation
The two pressure coils of a single phase power factor meter have

None of these
The same number of turns but different dimensions
The same dimension but different number of turns
The same dimensions and the same number of turns

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