In a series LCR circuit, the phase difference between the voltage and the current is `45^(@)`. Then the power factor will be

Question

In a series LCR circuit, the phase difference between the voltage and the current is `45^(@)`. Then the power factor will be

In a series LCR circuit, the phase difference between the voltage and the current is `45^(@)`. Then the power factor will be
A. `0.607`
B. `0.707`
C. `0.808`
D. 1

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
Here, `phi = 45^(@)`
In series LCR circuit, power factor `=cos phi`
`therefore cos phi = cos 45^(@)=(1)/(sqrt(2))=0.707`.

4 views Answered 2023-02-05 15:29