图示电路的时间常数τ应为下列哪项数值？（） A. 16ms B. 4ms C. 2ms D. 8ms

作者: tihaiku 人气: - 评论: 0

问题图示电路的时间常数τ应为下列哪项数值？（）

选项 A. 16ms B. 4ms C. 2ms D. 8ms

答案 D

解析解：将其等效为戴维南电路，则

。

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