高考物理复习第8章恒定电流实验8测定金属的电阻率资料市赛课公开课一等奖省名师优质课获奖课件.pptx

试验八测定金属电阻率,1/56,2/56,3/56,4/56,5/56,6/56,7/56,8/56,9/56,10/56,11/56,12/56,13/56,14/56,15/56,16/56,17/56,18/56,19/56,20/56,21/56,次数,1,2,3,4,5,6,7,U,/V,0.10,0.30,0.70,1.00,1.50,1.70,2.30,I,/A,0.020,0.060,0.160,0.220,0.340,0.460,0.520,22/56,23/56,24/56,25/56,26/56,27/56,28/56,29/56,30/56,31/56,32/56,33/56,34/56,35/56,36/56,37/56,38/56,39/56,40/56,41/56,42/56,43/56,44/56,45/56,46/56,47/56,48/56,49/56,50/56,51/56,52/56,53/56,54/56,55/56,56/56,