例1在图1中,所有电阻的额定功率都为4W,若从A点流入电流为2A,则图中阻值为2Ω的电阻消耗的功率为·解析:如图1所示,图中的六个节点分别用A、B、C、D、E、F表示,A、B、C三个节点处的电流分别用I、I3、I4,I4、I6、I7,I7、I9,I10表示·现在我们先从网络的右边向左边逐一剖析,因为R Example 1 In Figure 1, the rated power of all resistors is 4W. If the inflow current from point A is 2A, the power consumed by the resistor with a resistance of 2Ω in the figure is analytical. As shown in Figure 1, the figure shows The six nodes are denoted by A, B, C, D, E, F, respectively. The currents at the three nodes A, B, and C are denoted by I, I3, I4, I4, I6, I7, I7, I9, I10 respectively. Now we first analyze one by one from the right side of the network to the left because R