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If power factor is 1//2 in a series RL, ...

If power factor is `1//2` in a series `RL,` circuit `R=100 Omega. AC` mains is used then `L` is

A

`(sqrt(3))/(pi)H`

B

`piH`

C

`(pi)/(sqrt(3))H`

D

`sqrt(3)piH`

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The correct Answer is:
A
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