如图,电路两端电压不变,当滑动变阻器滑片P向右滑动时( )A.\x05灯L1变亮,灯L2变暗B.\x05灯L1、L2都变暗C.\x05灯L1变暗,灯L2变亮D.\x05灯L1、L2都变亮我就说不知道为什么变阻器的电阻变大,变阻器
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![如图,电路两端电压不变,当滑动变阻器滑片P向右滑动时( )A.\x05灯L1变亮,灯L2变暗B.\x05灯L1、L2都变暗C.\x05灯L1变暗,灯L2变亮D.\x05灯L1、L2都变亮我就说不知道为什么变阻器的电阻变大,变阻器](/uploads/image/z/10779534-54-4.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%94%B5%E8%B7%AF%E4%B8%A4%E7%AB%AF%E7%94%B5%E5%8E%8B%E4%B8%8D%E5%8F%98%2C%E5%BD%93%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E6%BB%91%E7%89%87P%E5%90%91%E5%8F%B3%E6%BB%91%E5%8A%A8%E6%97%B6%EF%BC%88+%EF%BC%89A.%5Cx05%E7%81%AFL1%E5%8F%98%E4%BA%AE%2C%E7%81%AFL2%E5%8F%98%E6%9A%97B.%5Cx05%E7%81%AFL1%E3%80%81L2%E9%83%BD%E5%8F%98%E6%9A%97C.%5Cx05%E7%81%AFL1%E5%8F%98%E6%9A%97%2C%E7%81%AFL2%E5%8F%98%E4%BA%AED.%5Cx05%E7%81%AFL1%E3%80%81L2%E9%83%BD%E5%8F%98%E4%BA%AE%E6%88%91%E5%B0%B1%E8%AF%B4%E4%B8%8D%E7%9F%A5%E9%81%93%E4%B8%BA%E4%BB%80%E4%B9%88%E5%8F%98%E9%98%BB%E5%99%A8%E7%9A%84%E7%94%B5%E9%98%BB%E5%8F%98%E5%A4%A7%2C%E5%8F%98%E9%98%BB%E5%99%A8)
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