The power consumed in a circuit element will be least when the phase difference between the current and voltage is
A. 180
B. 90
C. 60
D. 0
Explanatory answer:
we know power in ac circuit, P=VICOSø
when ø = 90, COS(90)= 0
Therefore the power consumed by the circuit will becomes zero at ø = 90 (least value).
A. 180
B. 90
C. 60
D. 0
Explanatory answer:
we know power in ac circuit, P=VICOSø
when ø = 90, COS(90)= 0
Therefore the power consumed by the circuit will becomes zero at ø = 90 (least value).
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