Physics

Problem

In a series RLC circuit

R=40\,\Omega

L=0.15\,\text{H}

and

C=10\,\mu\text{F}

. Find the frequency at which the current lags the source voltage by

60^{\circ}

. a)

130\,\text{Hz}

153\,\text{Hz}

172\,\text{Hz}

98\,\text{Hz}