电磁场中电势的辨析

Discrimination of Electric Potential in Electromagnetic Field

场是物理学科教学中电磁学部分的重要概念,而势是场量求解过程中常用到的"辅助"物理量。在职业学校的物理教学中,学生熟悉的都是静电场,对既有纵场也有横场的情况感到难以理解。所以对电动势和电势这两个常见的概念进行辨析,将有助于学生强化电磁场的概念。

Field is an important concept in electromagnetics in Physics teaching, while potential is commonly used in field solving process as an auxiliary physical quantity. In the Physics teaching in vocational schools, the students are familiar with the electrostatic field, but they have difficulty in understanding the situation With both longitudinal field and the transverse field. Therefore, the discrimination of electromotive force and electric potential will help to strengthen the students＇ understanding of the electromagnetic field.