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Measurement and Instrumentation

Measurement and Instrumentation
Resistance of a VARISTOR varies with

 Both Voltage and Temperature
 Temperature
 Current
 Voltage

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Measurement and Instrumentation
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used?

1 Ohm
2 Ohms
49.99 Ohms
1/49.99 ohms

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Measurement and Instrumentation
Which of the following devices should be used for accurate measurement of low D.C. voltage?

Small range thermocouple voltmeter
C. potentiometer
Small range moving coil voltmeter
None of these

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Measurement and Instrumentation
For measurement on high voltage capacitors, the suitable bridge is

Modified De santy's bridge
Wein bridge
Schering bridge
Any of the listed here

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Measurement and Instrumentation
Which of the following are integrating instruments?

Voltmeters
Ampere hour and watt hour meters
Wattmeters
Ammeters

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Measurement and Instrumentation
If the instrument is to have a wide range, the instrument should have

Linear scale
Square-law scale
Exponential scale
Logarithmic scale

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MORE MCQ ON Measurement and Instrumentation

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