用近似计算处理电偶极子的场强问题

Approximative calculation on electric field indensity of electric diploe

用近似计算方式直接处理电偶极子的远场场强,简捷、明了,既学习了一种近似计算方式,又引进了误差分析思想。

The desirability of apprximative calculation on distant electric field indensity of the electric diploe is shown on three phases,which are the increasing information of the class,the thought of error analysis and the simple way of dealing with the problem.