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Power factor of AC series circuit having...

Power factor of AC series circuit having resistance R and inductor L having angular frequency `omega` is ……..

A

0

B

`R/sqrt(R^2+omega^2L^2)`

C

`(omegaL)/R`

D

`R/(omegaL)`

Text Solution

Verified by Experts

The correct Answer is:
B
`|Z|=sqrt(R^2+omega^2L^2)`
`therefore` power factor =`R/"|Z|"`
`=R/sqrt(R^2+omega^2L^2)`
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