How fast is r changing at that moment

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Reference no: EM131604521

Question: If two electrical resistances, R1 and R2, are connected in parallel, their combined resistance, R, is given by

(1/ R) = (1/R1) + (1/R2)

Suppose R1 is held constant at 10 ohms, and that R2 is increasing at 2 ohms per minute when R2 is 20 ohms. How fast is R changing at that moment?

Reference no: EM131604521

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