正确选用电学器材，是做好电学实验的前提，也是电学实验所要求的基本能力．同学们在电学实验操作中必须给予充分的重视．下面结合具体实例和同学们谈谈如何正确选用电学实验器材．一、电源的选择１考虑使用电源的安全性，要避免所选电源电压过高而损坏器材，同时又要能够满 The correct selection of electrical equipment is a prerequisite for good electrical experimentation and a basic capability required by electrical experiments. The students must pay full attention to the electrical experiments. Below with specific examples and students talk about how to properly use electrical laboratory equipment. First, the choice of power supply 1  Consider the use of power supply security, to avoid the selected power supply voltage is too high and damage the equipment, but also be able to be full