The value of current in two series `LCR` circuits at resonance is same when connected across a sinusodial voltage source. Then:

Options

A. both circuits must be having same value of capacitance and inductor
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