For a series LCR circuit the inductance is and the resistance is

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

For a series LCR circuit the inductance is

L = 0.5\,\text{H}

and the resistance is

R = 5\,\Omega

. The resonant angular frequency is

\omega_0 = 200\,\text{rad s}^{-1}

. Using the small-

R

approximation, the higher half-power angular frequency

\omega_2

is nearly (a)

210\,\text{rad s}^{-1}

(b)

195\,\text{rad s}^{-1}

(c)

205\,\text{rad s}^{-1}

(d)

202.5\,\text{rad s}^{-1}