假設下面節點接地,其它節點電壓如下圖,假設V節點未知電流皆流出
V-105 + V-1010 + V5 = 1
2V - 20 + V - 10 + 2V = 10
5V = 40 ⟹ V=8 ⟹ I = 8/5 =1.6A