滑动变阻器与一标有3V0.9W的灯泡连接在电路中,电源电压为3V.1.当滑片移至A端,灯泡两端电压为 1min内消耗电能为 ?当滑片移动到N点,电压表示数是1V,滑动变阻器接入电路的阻值?灯泡实际功率?
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![滑动变阻器与一标有3V0.9W的灯泡连接在电路中,电源电压为3V.1.当滑片移至A端,灯泡两端电压为 1min内消耗电能为 ?当滑片移动到N点,电压表示数是1V,滑动变阻器接入电路的阻值?灯泡实际功率?](/uploads/image/z/9646444-28-4.jpg?t=%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E4%B8%8E%E4%B8%80%E6%A0%87%E6%9C%893V0.9W%E7%9A%84%E7%81%AF%E6%B3%A1%E8%BF%9E%E6%8E%A5%E5%9C%A8%E7%94%B5%E8%B7%AF%E4%B8%AD%2C%E7%94%B5%E6%BA%90%E7%94%B5%E5%8E%8B%E4%B8%BA3V.1.%E5%BD%93%E6%BB%91%E7%89%87%E7%A7%BB%E8%87%B3A%E7%AB%AF%2C%E7%81%AF%E6%B3%A1%E4%B8%A4%E7%AB%AF%E7%94%B5%E5%8E%8B%E4%B8%BA+1min%E5%86%85%E6%B6%88%E8%80%97%E7%94%B5%E8%83%BD%E4%B8%BA+++%3F%E5%BD%93%E6%BB%91%E7%89%87%E7%A7%BB%E5%8A%A8%E5%88%B0N%E7%82%B9%2C%E7%94%B5%E5%8E%8B%E8%A1%A8%E7%A4%BA%E6%95%B0%E6%98%AF1V%2C%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E6%8E%A5%E5%85%A5%E7%94%B5%E8%B7%AF%E7%9A%84%E9%98%BB%E5%80%BC%3F%E7%81%AF%E6%B3%A1%E5%AE%9E%E9%99%85%E5%8A%9F%E7%8E%87%3F)
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