For a series circuit containing fixed values of

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

Problem

R

L

and

C

, the magnitude of impedance

Z

is monitored while the supply frequency is gradually raised from a very low value. Which description best represents the behaviour of

Z

with frequency? (a)

Z

increases steadily with frequency (b)

Z

first increases to a maximum and then decreases as frequency continues to rise (c)

Z

first decreases to a minimum and then increases again (d)

Z

decreases continuously as frequency increases