Question: A battery with a constant emf & and internal resistance r provides power to an external circuit with a load resistance made up by

A battery with a constant emf & and internal resistance r provides

A battery with a constant emf & and internal resistance r provides power to an external circuit with a load resistance made up by combining resistance R and 2R, in parallel. For what value of R will the power delivered to the load be maximum? (c) R = /r 2 (a) R = 4 (b) R = r 2 3 (d) R ==r 2

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