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Measurement and Instrumentation

Measurement and Instrumentation
For measurement of mutual inductance we can use

Maxwell's bridge
Heavyside bridge
Anderson bridge
Any of the listed here

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Measurement and Instrumentation
______ instruments are most sensitive.

Dynamometer
Hot wire
Permanent magnet moving coil
Moving iron

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Measurement and Instrumentation
A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is

  4.6o.
 94.6o.
 85.4o.
 175.4o.

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Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

 300∠90° ohm.
 400∠-90° ohm.
 600∠-150° ohm.
 150∠30° ohm.

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Measurement and Instrumentation
It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor?

50W
100W
150W
200W

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Measurement and Instrumentation
_______ instruments are those which measure the total quantity of the electricity delivered in a particular time.

Indicating
Absolute
Integrating
Recording

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MORE MCQ ON Measurement and Instrumentation

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