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What is Ohm’s Law?
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Ohm’s Law states that the current in any circuit is directly proportional to the voltage and inversely proportional to the resistance.

I = $\frac{V}{R}$

The law was named after the German physicist Georg Simon Ohm, who, in a treatise published in 1827, described measurements of applied voltage and current through simple electrical circuits containing various lengths of wire.

by engr III (10.4k points)
Ohm's law is one of the most fundamental law in electrical circuits relating voltage, current, resistance. It was develop since 1827 by German physicist Georg Simon Ohm.