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 Coloring Page

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�—— Template

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sketch #4722 Ichigo by Gopal Gopi

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sketch #4722 Ichigo by Gopal Gopi

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sketch #5188 Paul Walker by Taï Marsan

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Laura Agapi Asnicar
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sketch #4704 Slash

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sketch #4937 Favorite animal competition runner-up: White Tiger by Deepak Kaushik

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sketch #3362 The Boss by David Torre

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sketch #5079 SketchToy Pencil by Sarah Prieto

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sketch #5079 SketchToy Pencil by Sarah Prieto

tomski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�—— 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

在如图甲所示的电路中螺线管匝数n = 1500匝横截面积S 20cm2螺线管导线电阻r 10ΩR1 40ΩR2 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

图所示电路中请用笔画线代替导线将电路补全．要求将�动变阻器和螺线管组成串联电路闭合开关后螺线管左端为N极且�动变阻器的�片�左移动 sketch template

某同学在“探究通电螺线管的外部磁场 的活动中用漆包线绕制一只螺线管接入如图所示的电路中闭合开关S后螺线管的下端为 极当�动变阻器的� 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开关闭合后螺线管通电产生磁场位于螺线管右则的小磁针会�生偏转．请画出通电螺线管的NS极并用箭头在小磁针N极的下方标出其转动的 sketch template

6．小芳用漆包线在笔杆上绕制了·一只螺线管接入如图所示的电路中闭合开关S后要使螺线管吸大头针的数量增多变阻器的�片P应� 端移动此时 sketch template

在“探究通电螺线管外部磁场 的实验中a B1将螺线管连接到如图a示电路中闭合开关后将螺线管靠�大头针�现此现象说明 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

在如图甲所示的电路中螺线管匝数n=1500横截面积S=20cm2螺线管导线电阻r=10ΩR1=40ΩR2=50ΩC sketch template

如图所示当开关闭合后两螺线管�相反方�运动请把乙螺线管的导线连接在右边电源上——青夏教育精英家教�—— sketch template

用漆包线在笔杆上绕制一只螺线管接入如图所示的电路中闭合开关S后要使螺线管吸引大头针的数量增多变阻器的�片P应� 端移动此时灯泡的亮度 sketch template

请在如图所示的虚线方框内画上适当的电器元件与框外的通电螺线管和开关组成一个闭合电路使此电路在开关S1闭合后能够满足�改变电流的强弱� 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甲乙两个螺线管靠很�串联在同一电路中 1标出螺线管甲的N极和S极 2若使两螺线管互相排斥试在图中画出螺线管乙的 sketch template

如图所示均匀绕制的螺线管水平放置在其正中心的上方附�用绝缘绳水平吊起通电直导线AA与螺线管垂直A导线中的电流方�垂直纸面�里开关S 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

在闭合螺线管线路中的开关S后小磁针的北极指�如图所示画出螺线管的绕线方式．——青夏教育精英家教�—— sketch template

如图所示电路当开关K闭合后螺线管的 端为N极．想使螺线管的磁性减弱应该填“插入或“拔出 铜塞．题目和参考答案 ——青夏教育精英 sketch template

12．如图所示螺线管B置于闭合�属圆环A的轴线上当B中通过的电流I减小时 A．环A有缩小的趋势 B．环A有扩张的趋势 C．螺线管B有 sketch template

如图a所示导体环A的正上方有一个竖直放置的螺线管螺线管与导线abcd构成回路导线所围区域内有一个垂直纸面的匀强磁场B其大小随时间按 sketch template

如图所示固定的轻弹簧下端用细线竖直悬挂一条形磁体当下方电路闭合通电后�现弹资长度缩短了请在括号屮标出螺线管下端的极性N或S和电源 sketch template

如图甲所示，匝数为n、总电阻为r、横截面积为S的竖直螺线管与两足够长的固定平行光�导轨相连，导轨间距为L，倾角为。导轨间有磁感应强度大小为 sketch template

1用细线悬挂一个重为5N的小球使其在空中�动如图甲所示．在图中画出小球�到A点时受到的重力示意图．2如图乙所示的螺线管接入电路中 sketch template

中考物理考点解读：通电螺线管的磁场知乎 sketch template

按如图所示将电流表电流从接线柱流入电流表指针�左偏与副线圈B连成一个闭合回路将原线圈A电池�动变阻器和电键S串联成另一个闭合电路 sketch template

百度教育 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

如图甲所示铅笔芯与�动变阻器串联在电压恒为6V的电路中闭合开关�动变阻器的�片从A端�B端移动电流表和电压表示数变化情况如图乙所示求 sketch template

小明用导线绕在铁钉上接入如图所示的电路中制成了一个电磁铁闭合开关S小磁针静止时左端应为 极当�动变阻器的�片P�左移动时电磁铁的 sketch template

如图1所示的电路中R1为定值电阻R2为�动变阻器电源电压不变．闭合开关S后�片P从a端移动到b端电流表示数I与电压表示数U的变化关系 sketch template

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