单选题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 （）.Ais smallBmay be neglectedCis usefulDis considerable
单选题
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
参考解析
解析：
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