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电学实验题不仅考查学生的实验能力,仪器的正确使用及其注意事项,同时也考查学生对物理概念及物理规律的理解和掌握情况。从近几年的中考阅卷情况看,考生解答实验题的情况并不理想。本文就如何解答电学实验题进行归纳分析。1 读表 读表是指依据图示指针所指位置,准确读出示数,或根据所给数据画出指针的正确位置。 例1 某同学用伏安法测电阻,测得未知
The electrical experiment questions not only examine the students’ experimental ability, the correct use of the instruments and their precautions, but also examine the students’ understanding and mastery of the physical and physical laws. Judging from the situation of examinations and examinations in recent years, candidates are not satisfied with the answers to the experimental questions. This article summarizes how to solve electrical problems. 1 Reading a Table Reading a table is referring to the position indicated by the illustrated pointer, accurately reading the number, or drawing the correct position of the pointer according to the given data. Example 1 Some students used a volt-ampere method to measure the resistance and measured the unknown