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Measurement and Instrumentation

Measurement and Instrumentation
Resistances can be measured with the help of

Ohmmeters and resistance bridges
Wattmeters
Voltmeters
Ammeters

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Measurement and Instrumentation
Which of following voltmeters would you use for measuring voltage across 20KΩ resistance

 Voltmeter having sensitivity of 1 KW/V.
  Voltmeter having sensitivity of 10 KW/V.
 Voltmeter having a resistance of 5 ΩK.
 None of above.

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Measurement and Instrumentation
The difference between the measured value and the true value is called

 gross error
 probable error
 relative error
 absolute error

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Measurement and Instrumentation
A permanent magnet moving coil ammeter has a coil resistance of 99ohm and Full Scale DeflectionFSD. current of 0.1mA. Shunt resistance is 1 ohm. Current through the meter at 0.5 F.S.D is

0.023mA
0.05mA
0.1mA
0.007mA

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Measurement and Instrumentation
The internal resistance of an ammeter should be

Infinity
Very small
High
Medium

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Measurement and Instrumentation
To measure ac as well as dc power, we use

Induction wattmeter
Dynamometer wattmeter
None of the listed here
Sometimes induction and sometimes dynamometer wattmeter

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MORE MCQ ON Measurement and Instrumentation

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