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In an AC circuit current is 3 A and volt...

In an AC circuit current is 3 A and voltage 210 V and power is 63 W. The power factor is …….

A

0.09

B

`0.10`

C

0.08

D

0.11

Text Solution

Verified by Experts

The correct Answer is:
B
`P=V_(rms)I_(rms)cosdelta`
`therefore` Power factor `cos delta =P/(V_(rms) I_(rms))`
`=63/(210xx3)`
`=1/10`
=0.10
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