MEASUREMENT AND INSTRUMENTATION QUIZ

 (Rc/Rb).Ra.

 (Rb/Rc).Ra.

 (Rc/Ra).Rb.

 (Ra/Rc).Rb.

  replaced by a source resistance

 short circuited

  replaced by a capacitor

 open circuited

Voltmeter

Ballastic galvanometer

Ammeter

Flux meter

Peak value to average value

Peak value to rms value

Rms value to peak value

Rms value to average value

Air friction damping

Fluid friction damping

None of these

Eddy current damping

 an electrostatic instrument.

 a moving coil instrument.

 a dynamometer instrument.

 a thermal instrument.

 balance equation independent of frequency.

  reduction of the cost.

 attaining balance condition is easier.

 measures high Q inductors.

 63.25o.

 30o.

 150o.

 105.6o.

 observational errors.

 instrument errors.

All of these

 environmental errors.

 It loads the circuit moderately.

 It loads the circuit to maximum extent.

 It uses centre zero galvanometer instead of voltmeter.

  It does not load the circuit at all.