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Measurement and Instrumentation

Measurement and Instrumentation
The core flux in the CT of above question no.6, under the given operating conditions is

 1000 mWb.
 0.
 225 mWb.
 450 mWb.

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Measurement and Instrumentation
The resistance can be measured most accurately by

Multimeter
Bridge method
Megger
Voltmeter-ammeter method

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Measurement and Instrumentation
The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when

 R1 = R2.
 R1 = 2R2.
 R1 = 3R2.
 R1 = R2/2.

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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

 1.
 0.5.
 none of above.
 0.

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Measurement and Instrumentation
The main advantage of Anderson bridge over Maxwell bridge is that

 balance equation independent of frequency.
 measures high Q inductors.
 attaining balance condition is easier.
  reduction of the cost.

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

Flux meter
Ammeter
Ballastic galvanometer
Voltmeter

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MORE MCQ ON Measurement and Instrumentation

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