The power of a n-phase circuit can be measured by using a minimum of

1.	The power of a n-phase circuit can be measured by using a minimum of
A.	(n – 1) wattmeter elements
B.	n wattmeter elements
C.	(n + 1) wattmeter elements
D.	2n wattmeter elements
Answer» B. n wattmeter elements

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The power of a n-phase circuit can be measured by using a minimum of

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