(i) Power factor is maximum at 1 when either the a.c. circuit is pure resistive circuit or is in resonance condition.
(ii) Power factor is minimum at zero when a.c. circuit is either pure inductive or pure capacitive or a combination of two.
Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
State the conditions under which power is (i) maximum, and (ii) minimum.
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(i) Power is maximum when the power factor is 1, occurring in a pure resistive circuit or at resonance in an A.C. circuit.
(ii) Power is minimum when the power factor is zero, occurring in pure inductive, pure capacitive, or their combination circuits.
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