Ohm’s Law

Ohm’s Law describes how the current through a conductor is related to the potential difference, ie., voltage, across the conductor. Specifically, the current is directly proportional to the voltage divided by the resistance of the conductor.

Ohm’s Law is often taught in the form:

V = I * R

But because in reality it is the current that is dependent on the voltage, the most appropriate form is:

I = \frac{V}{R}

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