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A battery of emf (epsilon) and internal ...

A battery of emf (epsilon) and internal resistance r is connected across a load resistanvce (RundersetL). The plot between output power and load resistance is shown in the figure. value of emf `(epsilon)` and internal resistance respectively will be

A

`20 V, 2(Omega)`

B

`10 V, 2(Omega)`

C

`20 V, 1(Omega)`

D

`10 V, 1(Omega)`

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