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In the given LR circuit the source has a...

In the given `LR` circuit the source has angular frequency `omega` The power factore of the circuit is
.

A

`L//R`

B

`R//omegaL`

C

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

D

`R + omegaL`

Text Solution

Verified by Experts

The correct Answer is:
C
`cos phi =(R )/(Z) = R/(sqrt(R^(2) + X_(L)^(2))) = R /(sqrt(R^(2) + omega^(2) L^(2)))` .
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