A cell of e.m.f. 1.5,V having a finite intern | vedclass

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Question

(C) According to the Maximum Power Transfer Theorem,the power delivered by a source with an internal resistance $r$ to an external load resistance $R$

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(C) According to the Maximum Power Transfer Theorem,the power delivered by a source with an internal resistance $r$ to an external load resistance $R$ is maximum when the external resistance is equal to the internal resistance of the source.Mathematically,for maximum power transfer,$R = r$.Given that the load resistance $R = 2\,\Omega$,the internal resistance $r$ must also be $2\,\Omega$ for maximum power transfer to occur.Therefore,the correct option is $C$.

$A$ cell of $e.m.f.$ $1.5\,V$ having a finite internal resistance is connected to a load resistance of $2\,\Omega$. For maximum power transfer,the internal resistance of the cell should be ............. $\Omega$.

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