1:1  11-16[理·物理]徐老师带你学会分析动态电路
推荐理由：画出电路简化图，关注不变量，迅速判断变化量。 讲解人： http://www.jiandan100.cn/teacher/37601926f934442ba793fd95862b39f7/ ，首都师范大学附属中学物理高级教师，北京海淀区骨干教师、学科带头人和先进工作者。 题面：如图所示的电路中，R1，R2，R3和R4皆为定值电阻，R5为可变电阻，电源的电动势为E，内阻r，设电流表A的读数为I。电压表V的读数为U，当R5的滑动变阻触点向图中的a端移动时，则（ ）  A．I变大，U变小 B．I变大，U变大 C．I变小，U变大 D．I变小，U变小 【答案及详解】 本部分内容设定了隐藏,需要回复后才能看到
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同学们，你知道怎么分析动态电路了么？ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ [每周一星] http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=653430& 浏览本期“简单学习电子周报”完整目录：http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=653404 查看更多本年级每周一题，请点击：http://www.jiandan100.cn/bbs/upload/forumdisplay.php?fid=384& |
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