电阻测量的多种方案设计

• 作 者: 程亮
• 出 处: 新高考(升学考试)
• 发表日期: 2004年期
• 关键词: 电阻测量 滑动变阻器 伏安法 测量步骤 测量电路 方案设计 示数 滑片 串联电路 电源电压

电阻的测量是初中学生必须掌握的物理知识,也是中考的重要考点之一。电阻的测量有基本方法和特殊方法,现介绍如下:一、伏安法1.测量器材:一个电池组、一个开关、导线若干、一个滑动变阻器、一个电流表、一个电压表和待测电阻Rx.2.测量电路如图1.3.测量步骤及需测物理量:1按图1电路图连接实物电路;

Resistance measurement is a junior high school students must grasp the physical knowledge, but also one of the important test centers. Measurement of resistance There are basic methods and special methods, are described below: First, the voltammetry 1. Measuring equipment: a battery pack, a switch, a number of wires, a sliding rheostat, a current meter, a voltmeter and the resistance to be measured Rx. 2. Measurement circuit shown in Figure 1.3. Measurement steps and physical quantities to be measured: 1 according to Figure 1 circuit connected physical circuit;