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恒定电流部分不仅与前面的电场有关联,还与后面的电磁感应、交流电联系紧密,所以“恒定电流”承上启下,既有本身的特点,又有枢纽作用,复习时务必厘清掌握.那么,恒定电流有哪些内容是重点、热点呢?本文结合近年各地高考命题情况,归类分析,希望对读者有所帮助,并能引申拓展,确保该部分内容在高考中不失分或少失分.一、柱体模型图1【例1】(2015·安徽卷)如图1所示,一根长
Constant current is not only related to the front of the electric field, but also with the back of the electromagnetic induction, AC close contact, so “constant current ” on the link, both its own characteristics, but also a pivotal role in the review must be clarified grasp.Then, What are the constant current content is the focus, hot? This article combines the college entrance examination in recent years around the proposition, classification analysis, I hope to help readers, and can be extended to ensure that the part of the college entrance examination in the score without losing or losing points. First, the cylinder model Figure 1 [Example 1] (2015 · Anhui volume) as shown in Figure 1, a long