單項(xiàng)選擇題The alternating current generator supplying a load has a voltage drop resulted from the loadWhen the load has a lagging power factor this voltage drop ().

A.is small
B.may be neglected
C.is useful
D.is considerable


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2.單項(xiàng)選擇題() is the actual value of the controlled condition.

A.Desired value
B.Set value
C.Measured value
D.Deviation