If the resistance doubles while the voltage stays the same, what effect will that have on the power?
1 answer:
The best formula to use for this question is Power = (voltage)² / R So Original power = (voltage)² / (original R) and New power = (same voltage)² / (2 x original R) That's equal to (1/2) (voltage)² / (original R) which is equal to (1/2) (original power) . So I guess the power decreases by half, and that's choice-B .
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Explanation:
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