高中物理第二章直流电路第7节学生实验：练习使用多用电表省公开课一等奖新名师优质课获奖课件.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,1/55,2/55,3/55,4/55,5/55,6/55,7/55,8/55,9/55,10/55,11/55,指针先指,“,0,”,后逐步增大到,“”,，且越来越慢,欧姆挡,电容器,正接时示数很小，反接时示数很大,欧姆挡,二极管,两接线柱正、反接时示数相同,欧姆挡,电阻,两接线柱正、反接时均无示数，说明无电源,电压挡,电源,现象,应用挡位,判断,元件,12/55,13/55,14/55,15/55,16/55,17/55,18/55,19/55,20/55,21/55,22/55,23/55,24/55,25/55,26/55,27/55,测试点,电压表示数,a,、,b,有示数,b,、,d,有示数,c,、,d,无示数,d,、,f,有示数,28/55,29/55,30/55,31/55,黑表笔,1,1,2,红表笔,2,3,1,表盘读数,0,0.5 k,2 k,32/55,33/55,34/55,35/55,36/55,37/55,38/55,39/55,40/55,41/55,42/55,43/55,44/55,45/55,46/55,47/55,48/55,49/55,50/55,51/55,52/55,53/55,54/55,55/55,