Vx+2=1
=>Vx=-1
10V...10/(5+5)=1A(down)
4A...4*5/(5+5)=2A(down)
6A...6*5/(5+5)=3A(up)
2V...2/(5+5)=0.2A(up)
2(Vx的-端)-0.2*5=1V (Vx的+端)
Vx=1(Vx的+端)-2(Vx的-端)=-1V
14 如圖所示電路,試求電壓 VX 為多少伏特? (A)-1(B)-..-阿摩線上測驗