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A load resistance R_L is supplied from a dc voltage source of resistance R. Maximum power transfer to the load occurs when which of the following cond

Question

A load resistance R_L is supplied from a dc voltage source of resistance R. Maximum power transfer to the load occurs when which of the following condition is satisfied?

$R_L < R$

$R_L = R/2$

$R_L > R$

$R_L= R$

Solution

Correct option is D

$\text{For a DC circuit, the Maximum Power Transfer Theorem states that:} \\[8pt]\text{Maximum power is transferred from the source to the load when the load resistance is equal to the internal resistance of the source.} \\[12pt]\text{Thus,} \\[8pt]R_L = R$