Question

A series lcr circuit act as a purely resistive circuit when

Answer 1

Answer:

a series LCR circuit act as purely resistive circuit when there is a condition of resonance

Explanation:

inin resonance the inductive reactance and capacitive reactance are equal so the impedance is always equal to the resistance hence maximum current is found in the circuit and also you can say that circuit is only resistive due to net zero reactance offered by capacitance and inductor

Answer 2

An LCR circuit appears purely resistive when at resonance.

At resonance, the reactance of the inductor and the capacitor are equal and opposite, leaving only the resistive element.