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MEASUREMENT AND INSTRUMENTATION

Measurement and Instrumentation
A mulliammeter can be used as

Ohmmeter
Frequency meter
Wattmeter
Voltmeter and ammeter

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Measurement and Instrumentation
Wagner earthing device is used to eliminate errors due to

Electromagnetic coupling
None of these
Electrostatic coupling
Both A and B

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Measurement and Instrumentation
The form factor in AC is the ratio of

Rms value to average value
Peak value to average value
Rms value to peak value
Peak value to rms value

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Measurement and Instrumentation
The error of an instrument is normally given as a percentage of

Full-scale value
Measured value
Mean value
Rms value

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Measurement and Instrumentation
The repeat accuracy of an instrument can be judged from its

Standard deviation of error
Static error
Dynamic error
Linearity error

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