Question

what are ohmic and non- ohmic conductor

Answer 1

Hey.

Here is the answer.

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Ohmic Conductor:

These are those conductors which follows the ohm's law through a wide range of temperature and pressure.

Ohm's law , V = IR is always applicable for these conductors.

They always give the same value of R regardless of type of current (AC or DC) under same V and I.

The V-I graph always gives straight line for ohmic Conductor.

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Non-ohmic Conductor :

These are those conductors which deviates from the Ohm's law.

It doesn't follow V = IR law.

It's V-I graph is never a straight line.
It keeps on changing with I and V with time. Which indicates that the Resistance is also changing with time and also temperature and pressure plays important role .

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Thanks.

Answer 2

Hey friend
here is your answer

ohmic resistor

▪they obey the Ohm's law. i.e.,V/I is constant for all the value of V or I.
▪the graph is straight line passing through origin.
▪the slope of V - I graph is same at all the value of V and Iat a given temperature.
example; iron, copper, nichrome, etc.


non - ohmic resistor
▪they do not obey the Ohm's law. i.e.,V/I is not same for all the value of V or I.
▪the graph is curved line which may not passing through origin.
▪the slope of V - I graph is different at all the value of V and Iat a given temperature
example; LEDn transistor, bulb, etc.


glad to help you
hope it helps
thank you.