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The potential differences across the res...

The potential differences across the resistance, capacitance and inductance are `80 V, 40 V` and `100 V` respectively in an `L-C-R` circuit. The power factor of this circuit is

A

`1.0`

B

`0.4`

C

`0.5`

D

`0.8`

Text Solution

Verified by Experts

The correct Answer is:
D
Power factor `= (R)/(Z) = (iR)/(iZ) = (80)/(sqrt((80)^(2) + (60)^(2))) = (80)/(100) = 0.8`
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