How does impedance transformation in an AC circuit enhance power transfer?

It reduces power transfer by raising the circuit's resistance.

It ensures the circuit operates with negligible impedance.

It enables maximum power transfer by aligning source and load impedances.

It removes the need for inductive or capacitive components.

Solution

Correct option is C

$\text{In AC circuits, impedance transformation (using transformers or matching networks) is used to match the load impedance to the source impedance.} \\[8pt]\text{According to the maximum power transfer theorem:} \\[6pt]\bullet \ \text{Maximum power is delivered when} \\[8pt]Z_L = Z_S^{*} \\[6pt]\text{(load impedance equals the complex conjugate of source impedance).} \\[8pt]\text{Impedance transformation helps achieve this condition, thereby \textbf{enhancing power transfer}.}$