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The power factor of LCR circuit at reson...

The power factor of LCR circuit at resonance is-

A

0

B

`1/2`

C

`(1)/(sqrt2)`

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
Impedance of the LCR circuit ,
`Z = sqrt(R^2 + (X_L - X_C)^2)`
` therefore Z = R`
Power factor , `cos phi = R/Z =1`
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