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The power factor of the circuit shown in...


The power factor of the circuit shown in figure is

A

0.4

B

0.8

C

0.9

D

0.7

Text Solution

Verified by Experts

The correct Answer is:
B
Power factor `=cosphi=(R)/(Z)`
`=(R)/(sqrt(R^(2)+(X_(L)-X_(C))^(2)))`
`=(80)/(sqrt(6400+3600))=(80)/(100)=0.8`
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