Measurement and Instrumentation
The terminals across the source are ______________________________ if a current source is to be neglected.

  replaced by a capacitor
  replaced by a source resistance
 open circuited
 short circuited

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Measurement and Instrumentation
A DC potentiometer is the best means available for the measurement of DC voltage because

 None of above.
 It is possible to standardize before a measurement is undertaken.
  It is based on null balance technique.
 The precision in measurment is independent of the type of the defector used.

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Measurement and Instrumentation
It can be stated that

No generalisation can be made with regard to the flux densities in CT and PT
CT operates with a higher flux density than PT
CT operates with considerably lower flux density than a PT
CT operates at almost the same flux density as a PT

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