How do you measure power factor?

How do you measure power factor?

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Answer :

P= 1.83*V*I*COS@ where P is power           V is voltage            I is current           COS @ is P.F COS@= P/(1.83*V*I)  in other way cos @ = true power/apparent power

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Last Answer : For a consumer the most economical power factor is generally 0.95 lagging .

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