近几年全国高考物理试题,欣喜地发现一些创新题型的出现,可见高考创新命题思路已成为了热点.其中2007年高考物理(上海卷)第16题就是一道具有创新立意的试题,下面以此题为例进行剖析.考题16.某同学设计了如图1(a)所示电路研究电源输出功率变化情况.电源E电动势、内电阻恒定,R1为 In recent years, the national college entrance examination physics test questions, it is pleased to discover the emergence of some innovative questions, showing that the idea of ​​college entrance examination innovation proposition has become a hot spot. The 2007 college entrance examination physics (Shanghai Vol.16) is a question with innovative ideas, the following This question is taken as an example for analysis. Question 16. Some students designed the circuit shown in Figure 1 (a) to study the power output power change situation. The power E electromotive force, constant internal resistance, R1 is