Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,*,第一章电与磁,1/26,2/26,3/26,电流磁效应,4/26,5/26,通电直导线偏离竖直位置,通电导线在磁场中受到力作用,6/26,有,大,小,7/26,大,小,正比,8/26,跟磁铁强度成正比,9/26,10/26,改变,改变,磁场,电流,11/26,12/26,13/26,14/26,15/26,16/26,17/26,18/26,19/26,20/26,21/26,22/26,23/26,24/26,25/26,26/26,