摘要
本文通过几个实例说明了在由电位梯度求场强时的一个常见错误。
The paper deals with a common error from using gradient of potential to work out the field. By using several examples, the paper analyzes the causes of the error and acquires a better understanding of the relation between electric potential and field strength.
出处
《首都师范大学学报（自然科学版）》
1996年第1期45-49,共5页
Journal of Capital Normal University：Natural Science Edition
关键词
电场强度
电位
电位梯度
被约束观察点
field strength, electric potential, gradient of electric potential, constrained point of views
