Show that the power supplied by a batter...

Show that the power supplied by a battery to an external reistance is maximum when it is equal to the internal resistance of the batter. Further show that this maximum power is `(e^(2))/(4r)` where is the emf of the battery and r is internal reisistance.

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NN GHOSH-HEATING AND CHEMICAL EFFECT OF CURRENT-EXAMPLE B

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