《中学物理》2011年第12期第41页发表了一篇论文《在物理习题教学中培养学生思维能力》(以下简称原文),原文中“训练3”的解答结果似不妥当,现提出本人的观点,和原文作者商榷,以期得到同行们的指正。一、原题及原文的解以下是原文的“训练3”及解答。训练3图5(本文图1)所示的交流电路中, “The Physics of Middle School” No. 12, 2011, p. 41 published a paper “Cultivate Students’ Thinking Ability in Physics Exercise Teaching” (hereinafter referred to as the original text). The answer to the “training 3” in the original text seems to be inappropriate. Put forward my own point of view, and discuss with the original author, in order to obtain corrections from their peers. First, the original title and the original solution The following is the original “training 3” and answer. Training 3 In the AC circuit shown in Figure 5 (Figure 1 of this article),