A、B两灯和变阻器如图所示连接，电源电压保持不变。当滑动变阻器的滑片P向右滑动时，A、B两灯的发光亮度将会_刷题宝

题干

A、B两灯和变阻器如图所示连接，电源电压保持不变。当滑动变阻器的滑片P向右滑动时，A、B两灯的发光亮度将会（）

A：A灯变暗，B灯变亮

B：A灯变亮，B灯变暗

C：A，B两灯都变亮

D：A，B两灯都变暗

上一题下一题 0.0难度选择题更新时间:2019-02-11 01:38:19

答案(点此获取答案解析）

A

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