电源电动势为E,内阻为γ,电流表电压表均为理想电表,S1、S2均闭合时,平行金属板中带电质点P恰处于静止S1、S2仍闭合,滑动变阻器R4滑片向上移动,电源输出功率可能增大,电源供电效率可能减少
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 07:03:05
![电源电动势为E,内阻为γ,电流表电压表均为理想电表,S1、S2均闭合时,平行金属板中带电质点P恰处于静止S1、S2仍闭合,滑动变阻器R4滑片向上移动,电源输出功率可能增大,电源供电效率可能减少](/uploads/image/z/4801655-47-5.jpg?t=%E7%94%B5%E6%BA%90%E7%94%B5%E5%8A%A8%E5%8A%BF%E4%B8%BAE%2C%E5%86%85%E9%98%BB%E4%B8%BA%CE%B3%2C%E7%94%B5%E6%B5%81%E8%A1%A8%E7%94%B5%E5%8E%8B%E8%A1%A8%E5%9D%87%E4%B8%BA%E7%90%86%E6%83%B3%E7%94%B5%E8%A1%A8%2CS1%E3%80%81S2%E5%9D%87%E9%97%AD%E5%90%88%E6%97%B6%2C%E5%B9%B3%E8%A1%8C%E9%87%91%E5%B1%9E%E6%9D%BF%E4%B8%AD%E5%B8%A6%E7%94%B5%E8%B4%A8%E7%82%B9P%E6%81%B0%E5%A4%84%E4%BA%8E%E9%9D%99%E6%AD%A2S1%E3%80%81S2%E4%BB%8D%E9%97%AD%E5%90%88%2C%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8R4%E6%BB%91%E7%89%87%E5%90%91%E4%B8%8A%E7%A7%BB%E5%8A%A8%2C%E7%94%B5%E6%BA%90%E8%BE%93%E5%87%BA%E5%8A%9F%E7%8E%87%E5%8F%AF%E8%83%BD%E5%A2%9E%E5%A4%A7%2C%E7%94%B5%E6%BA%90%E4%BE%9B%E7%94%B5%E6%95%88%E7%8E%87%E5%8F%AF%E8%83%BD%E5%87%8F%E5%B0%91)
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