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Measurement and Instrumentation

Measurement and Instrumentation
What is the approximate input impedance of a CRO?

 0
 100 MΩ
 1 MΩ
 10 MΩ

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Measurement and Instrumentation
The multiplier and the meter coil in a voltmeter are in

Series-parallel
Parallel
Series
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

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

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Measurement and Instrumentation
The pointer of an indicating instrument is generally made of _______

Soft steel
Copper
Aluminium
Silver

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Measurement and Instrumentation
The use of thermocouple meters for AC measurement leads to scale which is

 expontial.
 linear.
 logarithmic.
 square law.

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Measurement and Instrumentation
No eddy current and hysteresis losses occur in

Electrodynamo meter instruments
PMMC instruments
Electrostatic instruments
Moving iron instruments

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MORE MCQ ON Measurement and Instrumentation

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