摘要
本文给出了Biot-Savart定律的极坐标形式,许多在笛卡儿坐标中无法求解的问题可用此式求解。
The form of Biotand Savart; s law in the polar coordinates is paesented in this paper. Many problems which are unsolvable in the Cartesian coordinates can be solved in this form.
关键词
线电流
磁场
B-S定律
极坐标
Conis
focus
spirai
cardiod
conchoid
cissoid.
