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Measurement and Instrumentation

Measurement and Instrumentation
Relative error is same as

 absolute error.
None of these
 true error.
 ratio of absolute error and true value.

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

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

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Measurement and Instrumentation
To measure high frequency currents, we mostly use ______ ammeter.

Dynamometer
Moving iron
Hot wire
Thermocouple

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

Voltmeter
Ballastic galvanometer
Ammeter
Flux meter

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Measurement and Instrumentation
A moving iron ammeter may be compensated for frequency errors by

Series resistance
Shunt capacitance
A series inductance
A shunt resistance

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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 postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

 2 Nm.
 100 Nm.
 1 Nm.
  200 Nm.

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