物理电学电路图电源装在盒内,小灯泡L1,L2,L3以及四个接线柱A,B,C,D装在面板上,当用导线做如下连接时对应的现象是(1)导线连接AC,只有L1亮,(2)导线连接BC,只有L3亮,(3)导线连接BD,L2L3都亮,
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![物理电学电路图电源装在盒内,小灯泡L1,L2,L3以及四个接线柱A,B,C,D装在面板上,当用导线做如下连接时对应的现象是(1)导线连接AC,只有L1亮,(2)导线连接BC,只有L3亮,(3)导线连接BD,L2L3都亮,](/uploads/image/z/2212596-36-6.jpg?t=%E7%89%A9%E7%90%86%E7%94%B5%E5%AD%A6%E7%94%B5%E8%B7%AF%E5%9B%BE%E7%94%B5%E6%BA%90%E8%A3%85%E5%9C%A8%E7%9B%92%E5%86%85%2C%E5%B0%8F%E7%81%AF%E6%B3%A1L1%2CL2%2CL3%E4%BB%A5%E5%8F%8A%E5%9B%9B%E4%B8%AA%E6%8E%A5%E7%BA%BF%E6%9F%B1A%2CB%2CC%2CD%E8%A3%85%E5%9C%A8%E9%9D%A2%E6%9D%BF%E4%B8%8A%2C%E5%BD%93%E7%94%A8%E5%AF%BC%E7%BA%BF%E5%81%9A%E5%A6%82%E4%B8%8B%E8%BF%9E%E6%8E%A5%E6%97%B6%E5%AF%B9%E5%BA%94%E7%9A%84%E7%8E%B0%E8%B1%A1%E6%98%AF%EF%BC%881%EF%BC%89%E5%AF%BC%E7%BA%BF%E8%BF%9E%E6%8E%A5AC%2C%E5%8F%AA%E6%9C%89L1%E4%BA%AE%2C%EF%BC%882%EF%BC%89%E5%AF%BC%E7%BA%BF%E8%BF%9E%E6%8E%A5BC%2C%E5%8F%AA%E6%9C%89L3%E4%BA%AE%2C%EF%BC%883%EF%BC%89%E5%AF%BC%E7%BA%BF%E8%BF%9E%E6%8E%A5BD%2CL2L3%E9%83%BD%E4%BA%AE%2C)
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