Physics

Problem

A series RLC circuit has

R = 50\,\Omega

L = 0.20\,\text{H}

and

C = 80\,\mu\text{F}

. At what frequency (in hertz) will the current lag the voltage by

45^{\circ}

? a)

40\,\text{Hz}

64\,\text{Hz}

25\,\text{Hz}

94\,\text{Hz}