在图示的电路中,当开关S闭合后,流过开关S的电流I为()https://assets.asklib.com/psource/2015102909062873924.jpg
在图示的电路中,当开关S闭合后,流过开关S的电流I为:()https://assets.asklib.com/psource/2015110413543649882.png
图示电路中,电流I的值为 。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/6b38e52e73414a3aa87d4c2f935fe974.png
图示电路已知电流源的电压为6V,则其电流i为 。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/654edc060b3f4bdfbf9cebb3ec293baa.png
图a所示电路中,L=4H,且i(0_)=0,电压波形如图b所示,则当t=3S时,电感电流i为( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/3d7d3ba5cc7f415cbad73688e96d6027.png
图所示电路中,I、U、E的参考方向已经给出,请写出电路中端口电压U与电流I的关系表达式。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/3735006781d841409e8e11ef85378dfc.png
图示电路中,电流I3为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/598ec8a1653b49a2a68f126dabffa852.jpg
图示电路中,电流I的值为 。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/6b38e52e73414a3aa87d4c2f935fe974.png
电路如图4所示,电流I为。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/48dcfd6292e44a329c2d5b04973679d8.png
在图示电路中,总电流 I = 3 A。若使电流 I1 = 2 A,则电阻R 值为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/616c87d904264b3dacf72971a0196ef2.png
在图示电路中,U、I 的关系式正确的是http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/6381932f2ee041208b9053557ecf69ea.png
已知图示电路中的IS=5A,当US单独作用时,I1=3A,那么当IS、US共同作用时,2W电阻中电流I是http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/773bce0e27204340ab4833f822ec3b49.png
在下图所示电路中,I = 2 A,若将电流源断开,则电流I为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/4aecc3ffbabc4bb49e3927177cb06cf4.png
图示电路中A点电位VA为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/0d56751fd15748d29f6150e525165170.png
在图示电路中,电压 UAB 为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/be972729c1134ac88d58a9f9c0d1fecd.png
在图示电路中,已知:US =10 V,I1 =-4 A,I2 =1 A。电流 I3 为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/cc0f8eced1a6466da6e8693f0f4b3f56.png
在图示电路中,开关S闭合前电路已处于稳态,试问闭合开关瞬间,初始值i L( 0+ )和i (0+ )分别为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/2c8e09f6d810444b8eb8e94d638eb946.png
在图示正弦交流电路中,各支路电流有效值为I 1 =1 A,I 2=1 A,I 3 =3 A,则总电流i的有效值I为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/a1306357a26747be9ccc8a58c8c59a27.png
图示电路中的 U 为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/af02655ce91d4fc6a1d9d6a5168edacc.png
图示电路中,电流源发出的功率为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/03f3eba91390411681ab003e75ce1795.png
求图示电路中,各电源的功率为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/1c8d0c04fcea4780a8ebc0032979aacf.png
求图示电路中的电流i1和6Ω电阻上的功率( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/7465b7f375c9449fbbb74449bb66ea07.png
求图示电路中的电流i( )和16Ω电阻上的功率( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/bcac110e5be243df877f828be8d65150.png
在图示电路中,B点的电位VB为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/0de1efa422f14410b078cf364c59cdc7.png