Question

what do you mean by ohmic and non ohmic resistors ?

Answer 1

1.Ohmic resistors are the resistors which obey ohms law.
Non ohmic resistors are those which do not obey ohms law.

2.In ohmic resistors current is directly proportional to voltage.
In non ohmic resistors there is no linear relationship.

3.We get a straight line graph on plotting the values of current and voltage in ohmic resistors.
We don't get a linear graph in case of non ohmic resistors

4. Examples of ohmic resistors are carbon and metals.
Examples of non ohmic resistors are semiconductors.