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    14.素養(4)
1 如圖所示電路,試求電流 I 之值為何?
A -1A
B 0.6A
C 1.2A
D 1.6A

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