Physics

Problem

A series circuit has

R=20\,\Omega

L=0.10\,\text{H}

and

C=50\,\mu\text{F}

. It is supplied with the same rms voltage at two different frequencies,

40\,\text{Hz}

and

60\,\text{Hz}

. The ratio

I_{60}/I_{40}

of the rms currents at these frequencies is closest to a)

1.5

0.43

2.3

2.1