13．如图所示在磁感强度为b的匀强磁场中有半径为r的光�半圆形导体框架oc为一能绕o在框架上�动的导体棒oc之间连一个电阻r导体框架 Sketch Coloring Page

13．如图所示在磁感强度为b的匀强磁场中有半径为r的光�半圆形导体框架oc为一能绕o在框架上�动的导体棒oc之间连一个电阻r导体框架 Template

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tomski13．如图所示在磁感强度为b的匀强磁场中有半径为r的光�半圆形导体框架oc为一能绕o在框架上�动的导体棒oc之间连一个电阻r导体框架 coloring

13．如图所示在磁感强度为B的匀强磁场中有半径为r的光�半圆形导体框架OC为一能绕O在框架上�动的导体棒OC之间连一个电阻R导体框架 sketch template

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如图所示为地磁场磁感线的分布图，若地磁场是由于地球高途 sketch template

如图甲所示，竖直�下的匀强磁场存在于底面半径为R的圆柱形空间内，O和是圆柱形空间上下两个圆面的圆心，其后侧与O等高处有一个长度为R的水平线状 sketch template

如图所示�属棒ab的质量m＝5g放置在宽L＝1m光�的�属导轨的边缘处两�属导轨处于水平平面内该处有竖直�下的匀强磁场磁感强度B sketch template

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13．如图所示的是一种测量磁感强度的简易装置虚线框内有垂直于纸面的匀强磁场矩形线圈匝数为Nab=cd=L1 Bc=da=L2 当线框 sketch template

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如图8所示为蹄形磁体�围的磁感线分布图，在a、b、c、d四点中，磁场最强的是 A．a点 B．b点 C．c点 D．d点——青夏教育精英家教�—— sketch template

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16．如图13所示一个半径为r的半圆形线圈以直径ab 为轴匀速转动转速为nab的左侧有垂直于纸面�里与ab垂直的匀强磁场磁感应 sketch template

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如图所示，在a、b两点固定着两个带等量异种电荷的点电荷，c、d两点将a、b两点的连线三等分，e、f是a、b两点连线的中垂线上的两点，且e、f到 sketch template

回旋加速器工作原理示意图如图所示磁感应强度为B的匀强磁场与盒面垂直两盒间的狭缝很小粒子穿过的时间可忽略它们接在电压为U�率为f的交流 sketch template

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有一种磁性加热装置其关键部分由焊接在两个等大的�属圆环上的n根间距相等的平行�属条组成成“鼠笼状如图所示．每根�属条的长度为l电阻为 sketch template

如图所示当磁感强度B增加时内外连通的两�属环中的感应电流方�为 A．内外环都是逆时针B．内外环都是顺时针C．内环顺时针外环逆时针D sketch template

如图1所示小明在蹄形磁体的磁场中放置一根与螺线管连接的导体棒ab当ab棒水平�右运动时�现小磁针N极转至右边根据课堂上学习的相关知识 sketch template

13．如图所示的是一种测量磁感强度的简易装置虚线框内有垂直于纸面的匀强磁场矩形线圈匝数为Nab=cd=L1 Bc=da=L2 当线框 sketch template

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