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The following series L-C-R circuit , whe...

The following series L-C-R circuit , when driven by an emf source of angular frequency 70 kilo-radians per second , the circuit effectively behaves like

A

Purely resistive circuit

B

Series R-L circuit

C

Series R-C circuit

D

Series L-C circuit with R=0

Text Solution

Verified by Experts

The correct Answer is:
C
`omega = 70 xx 10 ^(3) rad // sec`
`X_(L) = omega L = 70 xx 10 ^(3) xx 100 xx 10 ^(-6) = 7 Omega `
`X_(C) = (1)/(omegaC) = (1)/( 70 xx 10 ^(3) xx 10 ^(-6)) = (1)/(7) xx 10^(2) = (100)/( 7) Omega `
As `X_(C) gt X_(L)`
Behave as RC circuit
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