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Power factor in an L-C-R circuit is …….....

Power factor in an L-C-R circuit is ……..

A

0

B

0.5

C

1

D

depends on the value of L, C, R

Text Solution

Verified by Experts

The correct Answer is:
C
Power factor is given by
`cos delta=R/sqrt(R^2+(omegaL-1/(omegaC)^2)`
but when resonance occurs `omegaL=1/(omegaC.)`
`therefore cos delta =R/R=1`
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