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Measurement and Instrumentation

Measurement and Instrumentation
Which one of the following meters has maximum loading effect on the circuit under measurement ?

 1000 Ω/volt
 1 MΩ/volt
 100 Ω/volt
 10 MΩ/volt

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Measurement and Instrumentation
No eddy current and hysteresis losses occur in

Electrostatic instruments
Electrodynamo meter instruments
Moving iron instruments
PMMC instruments

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Measurement and Instrumentation
A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is

 2V.
 √2V.
 2√2V.
 Zero.

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

Standard deviation of error
Dynamic error
Static error
Linearity error

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Measurement and Instrumentation
Standard resistor ia made from

Nichrome
Platinum
Silver
Manganin

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Measurement and Instrumentation
An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read

  10√3.
 20.
 20√3.
 10.

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