如图所示电路中,换路前已处于稳定状态,在t=0时开关S打开后的电流iL(t)为(

shuhaiku2019-12-17  25

问题 如图所示电路中,换路前已处于稳定状态,在t=0时开关S打开后的电流iL(t)为( )。A. 3 - e50tA B. 3 - e-50tA C. 3 + e-50tA D. 3 + e50tA

选项

答案C

解析[img]/upload/tiku/37/2011943_1.jpg[/img][img]/upload/tiku/37/2011943_1_1.jpg[/img][img]/upload/tiku/37/2011943_1_2.jpg[/img]答案:C
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