RLC Circuits and Resonance - Engineering

Q1:

A 90  resistor, a coil with 30  of reactance, and a capacitor with 50  of reactance are in series across a 12 V ac source. The current through the resistor is

A 9 mA

B 90 mA

C 13 mA

D 130 mA

ANS:D - 130 mA

@Pruthvi.

Formula changes depending on values of XL and XC. Here XC is greater than XL so in formulae we have to take (XC-XL) and vice versa if XL is greater.