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November 28, 2014

November 28, 2014

Posted by **Megan** on Wednesday, March 7, 2007 at 7:21pm.

Power = voltage^2 / resistance.

Think again about what you "know". Resistance does not decrease with increased power. For some things, like incandescent light bulbs, it goes up. Usually it stays the same.

P = I*V = V^2/R

Assume the circuit voltage (V) stays the same. What happens to power (P) when R decreases?

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