Which of the following is NOT an application of DC potentiometer? 

This question was previously asked in
HPCL Engineer Electrical 01 Nov 2022 Official Paper
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  1. Measurement of resistance
  2. Measurement of current
  3. Measurement of power
  4. Measurement of self-inductance

Answer (Detailed Solution Below)

Option 4 : Measurement of self-inductance
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Detailed Solution

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The correct answer is option 4):(Measurement of self-inductance)

Concept:

  • A DC potentiometer can be used to measure the current, resistance, and power.
  • If time can be measured then one can easily calculate the energy by multiplying the power with the time by the DC potentiometer.
  • The potentiometer is also used for the calibration of voltmeter, ammeter, and wattmeter
  • The potentiometer is used as a voltage divider in the electronic circuit.
  • The potentiometer is used in radio and television (TV) receivers for volume control, tone control and linearity control.
  • The potentiometer is used in medical equipment. It is used in wood processing machines.

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  • The DC potentiometer cannot be used to measure Insuctance value of inductor
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