2．如图所示在通电螺线管的�围放着能够自由转动的小磁针abcd这四个磁针静止时位置正确的是 a．磁针a b．磁针b c Sketch Coloring Page

2．如图所示在通电螺线管的�围放着能够自由转动的小磁针abcd这四个磁针静止时位置正确的是 a．磁针a b．磁针b c Template

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tomski2．如图所示在通电螺线管的�围放着能够自由转动的小磁针abcd这四个磁针静止时位置正确的是 a．磁针a b．磁针b coloring

中考物理考点解读：通电螺线管的磁场知乎 sketch template

如图所示在通电螺线管上绕出导线．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示，闭合开关后，两个通电螺线管中间的小磁针N极�下指。请你在括号内标出电源的“ ”或“﹣”极，并画出乙通电螺线管的绕线方法。百度教育 sketch template

如图所示套在光�玻璃管上的两个轻质螺线管AB通电后互相排斥试画出B螺线管的绕线方�．题目和参考答案——青夏教育精英家教�—— sketch template

中考物理考点解读：通电螺线管的磁场知乎 sketch template

中考物理考点解读：通电螺线管的磁场知乎 sketch template

在如图所示的通电螺线管旁有一静止磁体请标出电源的正极及螺线管磁感线的方�．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示在通电螺线管的管口管内中央外部中央的abc三处放置三枚可以自由转动的小磁针静止时N极指� A．都�右B．a�左 bc sketch template

如图所示两个通电螺线管与电源构成图示电路在其内部和两个螺线管之间中部上方分别放置一个小磁针静止时小磁针的位置正确的是 题目和参考 sketch template

如图所示为通电螺线管电流磁场方�及线圈绕�三者关系的判断方法示意图由图可知该线圈的电流方�是从a流�ba流�b．填“a 流�b 或“b sketch template

在图中通电螺线管�围放着能自由转动的小磁针ABCD当它们都静止时极性不正确的是 题目和参考答案——青夏教育精英家教�—— sketch template

如图所示通电螺线管�围能自由转动的小磁针abcd已静止指�正确的是 A 小磁针a B 小磁针b C 小磁针c D 小磁针 sketch template

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通电螺线管�围的磁感线分布及方�如图所示．请标出它的N极及电源的正、负极．百度教育 sketch template

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如图所示放在通电螺线管内部中间处的小磁针静止时N极指�右端则c端为电源的 极通电螺线管的a端为极——青夏教育精英家教�—— sketch template

在通电螺线管附�放一颗小磁针小磁针静止时N极的指�如图所示请在图中标出导线的电流方�以及磁感线的方�．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示通电螺线管�围的小磁针静止时小磁针N极指�正确的是 A．abcB．abdC．acdD．bcd 题目和参考答案 sketch template

如图所示的螺线管的匝数n=1500横截面积S=20cm2电阻r=15Ω与螺线管串联的外电阻R1=10ΩR2=35Ω若穿过螺线管的 sketch template

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如图所示根据小磁针静止时的指�画出通电螺线管中的电流方�电源的正负极及通电螺线管的NS极题目和参考答案——青夏教育精英家教�—— sketch template

14．如图所示已知通电螺线管两端的极性则电源的左端为极答案 ——青夏教育精英家教�—— sketch template

在图中通电螺线管�围放着能自由转动的小磁针ABCD当它们都静止时极性不正确的是 题目和参考答案——青夏教育精英家教�—— sketch template

1．如图所示通电螺线管置于闭合�属环A的轴线上A环在螺线管的正中间当螺线管中的电流逐渐减小时 A．A环有收缩的趋势 ——青夏教育 sketch template

2．如图所示在通电螺线管的�围放着能够自由转动的小磁针abcd这四个磁针静止时位置正确的是 A．磁针a B．磁针b C sketch template

在通电螺线管的abcd四点各放一个小磁针如图所示四点中小磁针N极指�相同的是AabBacCadDbcd 题目和参考 sketch template

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根据如图所示永磁体的磁极和通电螺线管间磁感线分布在图中标出通电螺线管的磁极解析因外部磁感线总是由N极指�S极由图可知磁感线都指� sketch template

如图所示的螺线管接入电路中闭合开关后小磁针的N极的指�如图所示请在电路的缺省部分画出电源的正负极．——青夏教育精英家教�—— sketch template

如图所示的螺线管中通以正常情况下的电流试标出旁边小磁针静止时的NS极．题目和参考答案 ——青夏教育精英家教�—— sketch template

如图所示在通电螺线管的上方放置一个可以自由转动的小磁针请根据电源的正负极判断小磁针静止时左端为极通电螺线管的左端为极．题目和参考 sketch template

如图通电螺线管的旁边有一可自由转动的小磁针当充以如箭头方�所示的电流时小磁针的N极将指�图中的 A．上方B．下方C．左方D．右方题目 sketch template

有一小磁针静止在通电螺线管上方如图所示则通电螺线管 A．左侧为N极a端为正极B．左侧为S极a端为正极C．左侧为N极b端为正极D sketch template

将一小磁针放在通电螺线管一端静止时情形如图所示请标出通电螺线管的电流方�和磁感线方�．题目和参考答案——青夏教育精英家教�—— sketch template

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