Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points, at a constant temperature.
Formula:
Simple Formula (Trick):
Examples of Ohmic Material:
metallic conductor like aluminium, silver, Copper etc they all are ohmic conductors
Examples of Non-Ohmic Material:
semiconductors like diodes, LDR, transistors, etc they all are non-ohmic conductors.