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Which one of the following devices is non-ohmic?

Options

  1. AConducting copper coil
  2. BElectric heating coil
  3. CSemi conductor diode
  4. DRheostat

Correct answer

C. Semi conductor diode

Step-by-step solution

The device that does not follow ohm's law is known as a non-ohmic device. Examples of non ohmic devices are: thermistors, crystal rectifiers, vacuum tube, bulb, Semi conductor diode etc.

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