define ohm's law...............
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A law relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current. Mathematically, the law states that V = IR, where V is the voltage difference, I is the current in amperes, and R is the resistance in ohms.
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OHM'S LAW
The potential difference across a conductor is directly proportional to the current passing through it provided the external conditions remain unchanged.
V is directly proportional to I
V = RI
Where R is the proportionality constant called resistance.
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