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电学实验中“描绘小灯泡的伏安特性曲线”得到的非线性图像,在近些年的高考题中频繁出现,同时还出现了以此为背景的其他非线性元件在电学实验中的应用问题。这些问题考查了同学们应用数学知识处理物理问题的能力,要求同学们能运用几何图形、函数图像进行表达与分析。下面我们就来一起探究一种求解此类问题的独特方法:找一交点或坐标点即可求出相关问题。
In the electrical experiment, the non-linear image obtained by the “volt-ampere characteristic curve of a small bulb” often appears in the college entrance examination in recent years. At the same time, there appear other non-linear elements in the electric experiment Application problems. These questions examine the ability of students to apply mathematical knowledge to deal with physical problems, require students to use geometry and function images for expression and analysis. Here we come together to explore a unique way to solve such problems: Find an intersection or coordinate point to find the relevant issues.