如图所示的电路图,电源的电动势为E,下列说法正确的是 A滑动变阻器划片向下移动时,R2两端电压变小 B滑动变阻器划片向下移动时,R2两端电压变大 C滑动变阻器划片位于
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 23:47:35
![如图所示的电路图,电源的电动势为E,下列说法正确的是 A滑动变阻器划片向下移动时,R2两端电压变小 B滑动变阻器划片向下移动时,R2两端电压变大 C滑动变阻器划片位于](/uploads/image/z/1372604-68-4.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%E7%9A%84%E7%94%B5%E8%B7%AF%E5%9B%BE%2C%E7%94%B5%E6%BA%90%E7%9A%84%E7%94%B5%E5%8A%A8%E5%8A%BF%E4%B8%BAE%2C%E4%B8%8B%E5%88%97%E8%AF%B4%E6%B3%95%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%98%AF+A%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E5%88%92%E7%89%87%E5%90%91%E4%B8%8B%E7%A7%BB%E5%8A%A8%E6%97%B6%2CR2%E4%B8%A4%E7%AB%AF%E7%94%B5%E5%8E%8B%E5%8F%98%E5%B0%8F+++++++++++++++B%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E5%88%92%E7%89%87%E5%90%91%E4%B8%8B%E7%A7%BB%E5%8A%A8%E6%97%B6%2CR2%E4%B8%A4%E7%AB%AF%E7%94%B5%E5%8E%8B%E5%8F%98%E5%A4%A7+++++++++++++++++C%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E5%88%92%E7%89%87%E4%BD%8D%E4%BA%8E)
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