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欧姆定律是电学中的一个重要定律,在课标中属理解层次知识,是初中物理的重点又是难点,是全各省、市每年中考必考内容.在中考试卷中的份量很重,题型呈现形式也多种多样,包括填空、选择、实验、探究、问答、计算题等.它贯穿于整个电学的计算之中,综合性强,常与电功、电功率、焦耳定律等知识结合起来作为压轴题.现以近几年全国各省、市的中考题为例加
Ohm’s law is an important law in electricity, in the standard class is to understand the level of knowledge, is the focus of junior high school physics is difficult, all provinces, municipalities in the exam will be the content of the exam. It also has a variety of forms, including fill in the blanks, selection, experiment, inquiry, question and answer, calculation questions, etc. It runs through the calculation of the whole electrical, comprehensive, often combined with the knowledge of electric power, electric power, Joule law Finale questions. In recent years, the provinces, municipalities in the exam questions as an example plus