The total power in a balanced three phase ac circuit – McqOptions

MCQOPTIONS

1.	The total power in a balanced three phase ac circuit
A.	Is constant at every instant of time
B.	Pulsates about a mean value at half the supply frequency.
C.	Pulsates about a mean value at supply frequency.
D.	Pulsates about a mean value at twice the supply frequency.
Answer» B. Pulsates about a mean value at half the supply frequency.

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