The uncertainty in potential difference is 3% .
The uncertainty in resistance is 2%.
What is the uncertainty in Power?
(I dont know why the answer of this question is 8%)??
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If you're multiplying by a constant factor, you multiply absolute uncertainties by the same factor, or do nothing to relative uncertainties. If you're taking the power of a number with an uncertainty, you multiply the relative uncertainty by the number in the power.
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