下图所示电路原已稳定，t=0时将开关S闭合。已知：R1=R2=2kΩ，L=200mH，US=12V。求S闭合后的电流
=（ ）。
发布时间：2025-12-05
A.
B.
C.
D.
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69436' and id < 4496668 and id<>'4496668' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69436' and id > 4496668 and id<>'4496668' order by id asc limit 5
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