【单选题】【消耗次数：1】
1-2在题图1-2（a）所示电路中，已知电容电流波形如题图1-2（b）所示，若<img class=jc-formula data-tex=u(0)=0V src=https://huaweicloudobs.ahjxjy.cn/CB3E66341CE102E1A0198ADF55F7ECF2.png style=vertical-align: middle;/>，求<img class=jc-formula data-tex={ u }_{ c }(t) src=https://huaweicloudobs.ahjxjy.cn/1E868EE2F011E025BB9181C33D42E73F.png style=vertical-align: middle;/>并画出其波形。<img src=https://huaweicloudobs.ahjxjy.cn/EE9F4BE4EB428F88B4A082D849B4965E.png title=捕获.PNG alt=捕获.PNG/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/0D47193E83EAD19F334FF85DA17BD069.png style= title=捕获1.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/E008CCD7AC2485480D7C92FCD7E3605C.png title=捕获2.PNG/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/BF910EEE0C503813A046D61F1566ECA0.png style= title=捕获3.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/3B9608CDB00D23635093138DB14C6333.png title=捕获4.PNG alt=捕获4.PNG width=181 height=170 style=width: 181px; height: 170px;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/1D7C101BBFE52FDB74ED45C94B70460A.png title=捕获5.PNG alt=捕获5.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/B9D1D24493A2F8B173EF24A16887E35C.png title=捕获6.PNG alt=捕获6.PNG width=178 height=158 style=width: 178px; height: 158px;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/34EB1CD12C1FA783BC12896E315EE815.png title=11.PNG alt=11.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/88A93EE5E25E9978E236230D5BC9255D.png title=12.PNG alt=12.PNG/>
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