试用节点电压法求解图示电路中的电流 I

Question

如题所述

Answer 1

(1/6 + 1/3 + 1/2) * V1 = 3/6 + 3 + 2/2

V1 = 4.5V

I = (4.5 - 2) / 2 = 1.25A

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