PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current
Problem
A series LCR circuit is at resonance. If the resistance R is doubled while L and C remain unchanged, which of the following best describes the resulting resonance curve?
(a) Peak current remains the same and the curve becomes broader
(b) Peak current increases and the curve becomes broader
(c) Peak current decreases and the curve becomes broader
(d) Peak current decreases and the curve becomes narrower