静电场与恒定电流场胡中绵（安徽省六安市双河中学２３７１７１）在中学物理中，只要求学生初步掌握静电场的有关知识，对电流场则不作要求．但是在做“电场中等势线的描绘”这个实验中，学生描出的却是恒定电流场的等势线，课本也明确告诉学生该实验“是用在导电纸上形... Electrostatic field and constant current field Huzhong Mianyu (Shuanghe Middle School 237171, Liu’an, Anhui Province) In the middle school physics, students are only required to have preliminary knowledge of the electrostatic field, and no requirement is imposed on the current field. However, in the experiment of “characterizing the middle line of the electric field”, the students traced the equipotential lines of the constant current field. The textbook also explicitly told the students that the experiment was “used on conductive paper...