在波形图中，变化起点是指正弦量由负到正的零点。若时间起点在变化起点之后，则初相位为（）。_精华吧

在波形图中，变化起点是指正弦量由负到正的零点。若时间起点在变化起点之后，则初相位为（）。

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在波形图中，变化起点是指正弦量由负到正的零点。若时间起点在变化起点之后，则初相位为（）。

A、正

B、零

C、负

正确答案：A

Tag：电工电子技术起点正弦时间：2024-11-07 10:40:00

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