1．如图所示通电螺线管的上方有一个静止的小磁针轴线上右边的圆圈表示闭合电路中一部分导体的横截面．下列判断正确的是 A．通电螺线管的d端 Sketch Coloring Page

1．如图所示通电螺线管的上方有一个静止的小磁针轴线上右边的圆圈表示闭合电路中一部分导体的横截面．下列判断正确的是 A．通电螺线管的d端 Template

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tomski1．如图所示通电螺线管的上方有一个静止的小磁针轴线上右边的圆圈表示闭合电路中一部分导体的横截面．下列判断正确的是 a．通电螺线管的d端 coloring

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

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

1．如图所示通电螺线管的上方有一个静止的小磁针轴线上右边的圆圈表示闭合电路中一部分导体的横截面．下列判断正确的是 A．通电螺线管的d端 sketch template

通电螺线管的NS极如图所示请在图12中括号内标出电源的正负极和小磁针静止时的NS极 ——青夏教育精英家教�—— sketch template

通电螺线管要点解读知乎 sketch template

如下图所示 根据小磁针的方�判断通电螺线管的极性及电源正负极——青夏教育精英家教�—— sketch template

题目如图所示当电源开关接通后会�现小磁针的北极�偏转这说明通电螺线管�围存在同时�现可移动的AB两螺线管相互题目和参考答案 sketch template

通电螺线管的磁感线方�如图，根据磁感线方�标出电源的正极和静止小磁针的N极。 sketch template

通电螺线管要点解读知乎 sketch template

3．如下图所示根据通电螺线管的磁感线方�可判断通电螺线管左端为极电源的a端为极小磁针静止时的b端为极——青夏教育精英家教�—— sketch template

如图所示根据通电螺线管中的电流方�标出静止在通电螺线管上方的小磁针的“N “S 极．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示当开关闭合后通电螺线管上方的小磁针受力的作用保持静止则通电螺线管的右端是 极电源的右端是 极——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abc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

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

通电螺线管内部放一个小磁针小磁针静止时的指�如图所示则bb端为电源正极cc端为通电螺线管N极．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示当开关闭合后通电螺线管上方的小磁针受力的作用保持静止则通电螺线管的右端是 极电源的右端是 极——青夏教育精英家教�—— sketch template

如图所示把螺线管沿东西方�水平悬挂起来然后给导线通上如图所示的电流请你想一想会�生的现象是 A．通电螺线管仍保持静止不动B．通电 sketch template

在图中通电螺线管�围放着能自由转动的小磁针ABC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

99．根据图中的电流方�和通电螺线管的磁极绕制螺线管——青夏教育精英家教�—— sketch template

如图所示通电螺线管的左端为 S 极则 A．小磁针c 端为N 极电源a 端为负极 B．小磁针c 端为正极 C．小 sketch template

通电螺线管产生的磁场类似于条形磁铁的磁场。请你用学过的电磁学知识详细解释原因。最好有图。百度知道 sketch template

如图所示，通电螺线管形成的磁场中有两个小磁铁A和B，其中B有一半在螺线管内部，一半在外部，则它们受力的方�分别为（） A �左，�左 B sketch template

环形磁感线条形磁铁磁感线第3页大山谷图库 sketch template

如图所示在通电螺线管的管口管内中央外部中央的abc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 Bc 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．abcB．abdC．acdD．bcd 题目和参考答案 sketch template

如图所示的电路已知R1=R2=R3若使通电螺线管的磁性最强的情况是 A．合上S1断开S2B．合上S2断开S1C．S1和S2都断开D 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abc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

请根据图中小磁针静止时的指�标出通电螺线管的NS极和电源的正负极——青夏教育精英家教�—— sketch template

根据图中通电螺线管通电后小磁针静止时N极所指的方�标出磁感线方�通电螺线管的NS极并在括号内标出电源的正负极．题目和参考答案——青 sketch template

在通电螺线管的abc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AabBacCadDbcd 题目和参考 sketch template

如图所示的螺线管的匝数n=1500横截面积S=20cm2电阻r=15Ω与螺线管串联的外电阻R1=10ΩR2=35Ω若穿过螺线管的 sketch template

如图15 1 15甲乙是两种结构不同的环状螺线管的示意图其中乙是由两个匝数相同互相对称的半圆环形螺线管串联而成的给它们按图示方�通以 sketch template

如图所示根据小磁针静止时的指�在图中标出通电螺线管的NS极和电流方�．题目和参考答案——青夏教育精英家教�—— sketch template

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