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Ohm's Law
The potential difference between the ends of a conductor is directly proportional to the electric current passing through it at constant temperature.
SI Unit of R is ohm
Ohm's law is valid for metal conductors provided the temperature and other physical conditions remain constant.

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According to ohm's law, physical conditions like temperature remaining constant and the current passing through a conductor experiences a force. where current is directly proportional to the voltage(potential difference) across the two ends.
In this V is voltage, I is current and R is resistance.Here R is constant.
It is used for calculating current through the conductor like D.C and AC current. Tells about the resistance in the circuit and voltage across the circuit.

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