PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current
Problem
When the rms voltages VL , VC and VR are measured respectively across the inductor L, the capacitor C and the resistor R in a series LCR circuit connected to an AC source, it is found that the ratio VL:VC:VR=1:2:3 . If the rms voltage of the AC source is 100 V, the VR is close to:
(1) 50 V
(2) 70 V
(3) 90 V
(4) 100 V