For a series circuit with

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

Problem

R = 20\,\Omega

L = 50\,\text{mH}

and

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

, a source of peak voltage

100\,\text{V}

can be set either to

400\,\text{Hz}

or to

600\,\text{Hz}

. Which choice gives the larger peak current and by approximately what factor compared with the other choice? (a)

600\,\text{Hz}

; current about

1.8

times larger (b) Currents are nearly equal at both

400\,\text{Hz}

and

600\,\text{Hz}

(c)

400\,\text{Hz}

; current about

1.8

times larger (d)

400\,\text{Hz}

; current about

0.55

times smaller