关于滑动变阻器的一组习题

• 作 者: 翟乃山
• 机 构: 山东淄博博山一中
• 出 处: 中学物理教学参考
• 发表日期: 1997年05期
• 关键词: 滑动变阻器 滑片 山东淄博 抽象逻辑思维 安培表 示数 输出功率 一灯 大时

关于滑动变阻器的一组习题翟乃山（山东淄博博山一中，２５５２０１）有关滑动变阻器的习题，非常有利于培养学生的抽象逻辑思维能力．现精选几题如下：１．如图１示，试证明滑动变阻器的滑片向左移动时ＲＡＢ变小．图１图２图３２．如图２示，试证明当滑动变阻器的滑片在...

With regard to a set of exercises for sliding rheostats, Nai Shan (Shandong Zibo Boshan Yizhong, 255201) exercises on sliding rheostats are very conducive to developing students’ abstract logical thinking ability. Now select a few questions are as follows: 1. As shown in Figure 1, try to prove that the slide of the sliding rheostat moves to the left RAB becomes smaller. Figure 1 Figure 2 Figure 32. As shown in Figure 2, the test proves that when the sliding rheostat slides in...