The value of current in two series LCR circuits at resonance is same, then

Options

A. both circuits must be having same value of capacitance and inductance
B. in both circuits ratio of L and C will be same
C. for both the circuits `(X_L)//(X_C)` must be same at that frequency
D. both circuits must have same impedance at all frequencies

Answer

C

Explanation

`X_(L)=X_(C) at resonance
(X_L)/(X_C) = 1` for both circuits.
Impendance may be different if applied voltage is different.