CBSE Class 12-science Answered
Define power factor. State the conditions under which it is (i) maximum and (ii) minimum.
Asked by Topperlearning User | 22 Jun, 2015, 11:22: AM
Expert Answer
The power factor(cosΦ) is the ratio of resistance and impedance of an ac circuit i.e,
Maximum Power factor is 1 when Z = R i.e, when circuit is purely resistive. Minimum power factor is 0 when R = 0 i.e., when circuit is purely inductive
Answered by | 22 Jun, 2015, 01:22: PM
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