RC Circuits - Engineering

Q1:

A 47  resistor and a capacitor with 150  of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is

A Z = 47  + j150 

B Z = 47  – j150 

C Z = 197 

D Z = 103 

ANS:B - Z = 47  – j150 

@Indrejit you are wrong.

For inductive Z = R+jXl.

For capacitive Z = R-jXc.