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Problem

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Textbook ExpertVerified Tutor
15 Nov 2021

Given information

A resistor of  ohms is connected across a battery of  volts with internal resistance  ohms then the power (in watts) in the external resistor is .If  and   are fixed but  varies.

Step-by-step explanation

Step 1.

According to the question, 

External resistor is  

If the two functions and are differentiable then the quotient is differentiable and,

 

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