如图所示电路图中,滑动变阻器R1的最大阻值为24欧,滑片位于中点.定值电阻R2的阻值为4欧,小灯泡L的规格“12V 6W”,电流表A为理想电表,闭合电键S,小灯泡正常发光,求(1)电流表的读数I (2)电
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![如图所示电路图中,滑动变阻器R1的最大阻值为24欧,滑片位于中点.定值电阻R2的阻值为4欧,小灯泡L的规格“12V 6W”,电流表A为理想电表,闭合电键S,小灯泡正常发光,求(1)电流表的读数I (2)电](/uploads/image/z/3237302-38-2.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%E7%94%B5%E8%B7%AF%E5%9B%BE%E4%B8%AD%2C%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8R1%E7%9A%84%E6%9C%80%E5%A4%A7%E9%98%BB%E5%80%BC%E4%B8%BA24%E6%AC%A7%2C%E6%BB%91%E7%89%87%E4%BD%8D%E4%BA%8E%E4%B8%AD%E7%82%B9.%E5%AE%9A%E5%80%BC%E7%94%B5%E9%98%BBR2%E7%9A%84%E9%98%BB%E5%80%BC%E4%B8%BA4%E6%AC%A7%2C%E5%B0%8F%E7%81%AF%E6%B3%A1L%E7%9A%84%E8%A7%84%E6%A0%BC%E2%80%9C12V+6W%E2%80%9D%2C%E7%94%B5%E6%B5%81%E8%A1%A8A%E4%B8%BA%E7%90%86%E6%83%B3%E7%94%B5%E8%A1%A8%2C%E9%97%AD%E5%90%88%E7%94%B5%E9%94%AES%2C%E5%B0%8F%E7%81%AF%E6%B3%A1%E6%AD%A3%E5%B8%B8%E5%8F%91%E5%85%89%2C%E6%B1%82%EF%BC%881%EF%BC%89%E7%94%B5%E6%B5%81%E8%A1%A8%E7%9A%84%E8%AF%BB%E6%95%B0I+%EF%BC%882%EF%BC%89%E7%94%B5)
如图所示电路图中,滑动变阻器R1的最大阻值为24欧,滑片位于中点.定值电阻R2的阻值为4欧,小灯泡L的规格“12V 6W”,电流表A为理想电表,闭合电键S,小灯泡正常发光,求(1)电流表的读数I (2)电
如图所示电路图中,滑动变阻器R1的最大阻值为24欧,滑片位于中点.定值电阻R2的阻值为4欧,小灯泡L的规格“12V 6W”,电流表A为理想电表,闭合电键S,小灯泡正常发光,求(1)电流表的读数I (2)电源电压U (3)若滑动变阻器接入电路的阻值为8欧,不考虑小灯泡L阻值的变化,求小灯泡L的实际功率P
如图所示电路图中,滑动变阻器R1的最大阻值为24欧,滑片位于中点.定值电阻R2的阻值为4欧,小灯泡L的规格“12V 6W”,电流表A为理想电表,闭合电键S,小灯泡正常发光,求(1)电流表的读数I (2)电
能上图片么?