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MEASUREMENT AND INSTRUMENTATION

Measurement and Instrumentation
A mulliammeter can be used as

Frequency meter
Ohmmeter
Wattmeter
Voltmeter and ammeter

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

Electrostatic coupling
Both A and B
None of these
Electromagnetic coupling

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

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

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

Mean value
Rms value
Measured value
Full-scale value

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

Standard deviation of error
Dynamic error
Linearity error
Static error

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