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  • In the circuit shown in figure, the external load resistance R is variable. The value of R for which power consumed by it is maximum, is (Each row contains 5 identical cells of emf  and internal r

In the circuit shown in figure, the external load resistance R is variable. The value of R for which power consumed by it is maximum, is (Each row contains 5 identical cells of emf  and internal resistance r)

Option: 1

\frac{5r}{4}


Option: 2

\frac{4r}{5}


Option: 3

5r

 


Option: 4

4r


Answers (1)

best_answer

Answer (1)

For maximum power transfer

R_{ext}=Internal\; resistance

Posted by

Rakesh

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