Resistance of a VARISTOR varies with

Electrical Engineering XYZ MCQs

Resistance of a VARISTOR varies with:

  1. Voltage
  2. Temperature
  3. Both of the above
  4. Current

Correct answer: 1. Voltage

Explanation: A varistor also known as voltage-dependent resistor (VDR) is a surge protecting electronic component with an electrical resistance that varies with the applied voltage. It has a nonlinear, non-ohmic current–voltage characteristic that is similar to that of a diode.

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