电路如图7-4所示，已知I=1A，Us为( )V。 A. -1 B. -3 C. 2.4 D.4

作者: tihaiku 人气: - 评论: 0

问题电路如图7-4所示，已知I=1A，Us为( )V。

选项 A. -1 B. -3 C. 2.4 D.4

答案 A

解析提示：求a、b两点看进去的戴维宁等效电路

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