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北师大版九年级物理章节周周测(九)(第十二章)习题课件
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这是一份北师大版九年级物理章节周周测(九)(第十二章)习题课件,共24页。
阻值最大得到普遍的规律正比变暗增大并L1或电流表A断路64∶11∶24不能在转换开关S测电压时,电压表的指针会反偏ADDCBCBC如图所示。B端短路R2、R3单独接入电路,R2、R3串联和R2、R3并联分别接入电路6.165
阻值最大得到普遍的规律正比变暗增大并L1或电流表A断路64∶11∶24不能在转换开关S测电压时,电压表的指针会反偏ADDCBCBC如图所示。B端短路R2、R3单独接入电路,R2、R3串联和R2、R3并联分别接入电路6.165
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