图示电路原已稳定,已知:R1 = R2 = R3 = 100W,C = 100 mF,US = 600 V,t = 0 时将开关S 闭合。则S 闭合后 i2 ( t )=http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/f46a48d52d214542a7d52b9387f527d6.png

时间:2022-11-16 21:38:06

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