Measurement and Instrumentation
When the pointer of an indicating instrument comes to rest in the final deflected position, ______

Both deflecting and controlling torques act
Only deflecting torque acts
None of the listed here
Only controlling torque acts

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Measurement and Instrumentation
A Manganin swap resistance is connected in series with a moving coil ammeter consisting of a milli ammeter and a suitable shunt in order to

  Minimize the effect of temperature variation.
 Minimize the effect of stray magnetic fields.
 Reduce the size of the meter.
 Obtaine large deflecting torque.

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

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

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