What is Ohm's law?
The relation between voltage, current and resistance of a circuit is defined by Ohm's law. According to this law, the current flowing through a conductor is proportional to the voltage applied across it and inversely proportional to its resistance. That means current I directly proportional to applied voltage V and inversely proportional to resistance R. This relation is linear relation and the linearity is only perfectly maintained if the temperature and other physical conditions of the conductor remain same.
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