If two resistors with resistances R1 and R2 are connected in parallel, then the total resistance, R, measured in ohms (Omega sign) is given by: (1/R)=(1/R1)+(1/R2). If R1 is increasing at a rate of .2 ohms/s and R2 is increasing at a rate of .3 ohms/s, how fast is R changing when R1= 80 ohms and R2= 100 ohms.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
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If two resistors with resistances R1 and R2 are connected in parallel, then the total resistance, R, measured in ohms (Omega sign) is given by:

(1/R)=(1/R1)+(1/R2). If R1 is increasing at a rate of .2 ohms/s and R2 is increasing at a rate of .3 ohms/s, how fast is R changing when R1= 80 ohms and R2= 100 ohms.

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