模电解析 第三章

本次仅包含大题 3-3答案：uc(0+) = 5/3V; ic(0+) = 5/12 mA; uR1(0+) = 25/6Ω uc(0+) = uc(0-)，注意到换路前R1上有电流通过，故R1会分压，uc(0-) = Us*(R2/(R1+R2)) = 5/3V 换路后瞬间电路总电压为Us - uc(0+) = 25/3V，ic(0+) = (25/3)/(R1+R3) = 5/12 mA uR

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