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Measurement and Instrumentation

Measurement and Instrumentation
Which of the following meters has a linear scale?

Moving coil meter
Thermocouple meter
Hot wore meter
Moving iron meter

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

Series-parallel
None of the listed here
Series
Parallel

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Measurement and Instrumentation
To increase Q factor of a coil, the wire should be

 long.
 thin.
 thick.
 long and thin.

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Measurement and Instrumentation
A 10MHz CRO has

10MHz supply frequency
10MHz vertical oscillator
5MHz sweep
10MHz horizontal oscillator

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Measurement and Instrumentation
______ instruments are most sensitive.

Moving iron
Dynamometer
Hot wire
Permanent magnet moving coil

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Measurement and Instrumentation
A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is

 1 V.
 1.34 V.
 1.7 V.
 1.5 V.

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