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A battery of 10 V and internal resistance 0.50 is connected across a variable resistance R. The value of R for which the power delivered is maximum is equal to (a) 0.25 W (b) 0.5 W (c) 1.0 W (d) 2.0 W



A battery of 10 V and internal resistance 0.50 is connected across a variable resistance R. The value of R for which the power delivered is maximum is equal to


        (a)    0.25 W


        (b)    0.5 W


        (c)    1.0 W        


           (d)    2.0 W

Grade:11

1 Answers

Hrishant Goswami
343 Points
9 years ago

(b)

Power is maximum when r = R, R = r = 0.5W.

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