Question

In L-C series circuit, if voltage across inductor is 80
volt and that of capacitor is 60 volt then applied A.C
voltage at source is​

Answer 1

ANSWER

Given,

VR=40V

VL=60V

VC=30V

From the vector diagram,

V=VR+j(VL−VC)

V=40+j(60−30)

 

V=40+30j

Magnitude,

V=(40)2+(30)2=2500V

V=50V

The correct option is B.