Rankers Physics

Power of Electrical Circuit: Practice Problem & Solution

Two identical batteries each of e.m.f. $2\text{ V}$ and internal resistance $1\text{ }\Omega$ are available to produce heat in an external resistance by passing a current through it. The maximum power that can be developed across $R$ using these batteries is (1990)
$3.2\text{ W}$
$2.0\text{ W}$
$1.28\text{ W}$
$\frac{8}{9}\text{ W}$

No solution provided for this question.

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