Question

what is ohmic and non ohmic device​

Answer 1

The device which follows ohm's law for all voltages across it is called as an ohmic device. ... Examples of ohmic devices are : a wire, heating element or a resistor. The device that does not follow ohm's law is known as a non-ohmic device (i.e the resistance is different for different currents passing through it).

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Answer 2

Answer:

The devices that follow ohm's law for all voltages across it are called ohmic devices.

The devices that doesn't follow ohm's law are called non-ohmic devices.

Example of ohmic devices: a wire, heating element, etc.

Example of non-ohmic devices: thermistor, vacuum tube, etc.