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V = I * R

The equation you are looking for is R = V/I, although this is derived from the definition of the ohm, not Ohm's Law!

Ohm's Law is merely a statement which, in effect, says that for a limited range of conductors, the ratio of voltage to current is constant for variations in voltage.

If the ratio of voltage to current changes for variations in voltage, then Ohm's Law does not apply.

However, the ratio of voltage to current will always tell you what the resistance of a load or device happens to be for that particular ratio.

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12y ago
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9y ago

E=RI

Where E is voltage, R is resistance, I is current.

R=V/I V = RI

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Q: What is the formula for Ohms Law?
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