简易电容放电演示装置

电容具有储能特性,是高中物理教学中的一个难点.特别是电容充、放电过程的演示,通常是用示波器来完成.而实际上由于条件限制,很多中学是不做这个演示实验的.针对这个困难,笔者对此演示实验进行了改进.改进后,电容放电过程利用发光二极管的逐个熄灭形象地表述.该装置取材容易、制作简单、经济实惠,是一个不错的教学辅助装置.

On Simple Electrostatic Discharge Demonstration Installment

It is a difficulty in physics teaching in the high schools that the electric capacity has the characteristic of storing energy. The progress of the charging and discharging is usually demonstrated by the oscilloscope. But this experiment is done in for the reason of limited conditions. In view of this difficulty, the authors make improvement, which indicates the charging and discharging process vividly by the lighted diode which gives off one after another. It is a good auxiliary teaching unit because of selecting maternal easily, manufacturing simply and inexpensiveness but usefulness.