Ohm’s Law

What is Ohm’s Law?

In the early 1800s, Georg Simon Ohm (1789-1854), a German physicist, developed the law that bears his name: the resistance of an object is independent of current through it. Many materials do not obey Ohm’s Law. For example, when the current through the tungsten filament wire in a lamp is increased the temperature of the wire increases and so does its resistance.


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