Write down the condition of resonance in series L-C-R circuit and hence find an expression for the resonant frequency.

Options

A. `(omega_(r))/(R )`
B. `(1)/(omega CR)`
C. `sqrt((L)/(C )) (1)/(R )`
D. `(R )/(LC)`

Answer

C

Explanation

`Q = (omega_(r)L)/(R) = (1)/(omega_(r) CR) = (1)/(R) sqrt((L)/(C))`