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[" 22.If the power factor is "1/2" in a ...

[" 22.If the power factor is "1/2" in a series "RL" circuit with "R=100Omega" .If "AC" mains,"50Hz" is used,then "L" is "],[[" (a) "(sqrt(3))/(pi)" henry "," (b) "pi" it henry "," (c) "sqrt(3)" henry "," (d) "sqrt(3)pi" henry "]]

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