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18．如图所示是探究“磁场对通电导线作用 的实验装置．把�属棒ab放在磁场中并将�属棒ab用软导线接入电路中闭合开关后让电流通过�属棒 Template






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sketch 1490 James Joyce....
sketch 3264 Lisa by Shaban Khan
sketch 141 Sunset
sketch 3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer
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sketch 5200 Kristen Stewart by Rhemzkian Esturco
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sketch 3727 Stitch by Louis Tradieu
sketch 5202 The Woman by Céline Chalois
sketch 3749 Girl Ari Rainbow
sketch 1114 fire flame camping bonfire
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tomski18．如图所示是探究“磁场对通电导线作用 的实验装置．把�属棒ab放在磁场中并将�属棒ab用软导线接入电路中闭合开关后让电流通过�属棒 coloring
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如图所示，线圈通电后，受磁场力作用将开始顺时针旋转。如果线圈是固定的，磁体可以绕线圈旋转，则线圈通电后，磁体将（ sketch template
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电磁联系 1小明探究通电直导线围的磁场分布情况，找来小磁针、铁、硬纸板等，做了如图1所示的实验。观察实验结果他现，直导线围的磁场是 sketch template
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中考物理考点解读：通电螺线管的磁场 知乎 sketch template
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如图所示四个演示实验中能够说明电磁感应现象的是 能够说明磁场对通电导体有力的作用的是 能够说明电流围存在磁场的是 ．在电风扇电熨斗 sketch template
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中考物理考点解读：通电螺线管的磁场 知乎 sketch template
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通电线圈在磁场中会受到磁场力磁场力的作用因此线圈会转动起来当线圈的两个边受到的力在同一条同一条直线上时线圈所在的位置叫做平衡位置平衡位置 sketch template
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在探究通电导线在磁场中的受力方与什么有关系时一位同学做了如图abc的三个实验．图中AB表示闭合电路的一部分导线导线上的箭头表示电流的 sketch template
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中考物理考点解读：通电螺线管的磁场 知乎 sketch template
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通电的线圈放在磁场中会转起来，为什么 百度经验 sketch template
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中考物理考点解读：通电螺线管的磁场 知乎 sketch template
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1如图A所示是奥斯特实验图从甲乙可知通电导线围存在 从甲丙可知 2图B所示是探究 现象的实验装置根据这个现象明了 sketch template
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如图甲所示是小明“探究电流与电压、电阻的关系”的实验电路图。选用的实验器材是：电源3V、电流表（00 6A）、 出卷 sketch template
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题目如图所示某同学在探究通电导体在磁场中会受到力的作用的实验中用两根水平且平行的属轨道把一根直导体ab支起来并让这根导体处于蹄形 sketch template
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百度教育 sketch template
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探究导体在磁场中运动时产生感应电流的条件如图所示实验时控制磁场方相同改变导体ab的运动方．1导体水平左右运动如图甲所示电流 sketch template
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百度教育 sketch template
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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
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百度教育 sketch template
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“探究电流与电压关系 实验的电路图如图所示在实验中应控制 不变动变阻器Rˊ的作用是 ——青夏教育精英家教—— sketch template
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如图所示的电路图是用来研究通过导体的电流跟导体电阻关系的，其中R1与R2为阻值不同的定值电阻，第一次实验用的定值电阻为R1 ， 闭合开关后，记 sketch template
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题目如图所示宽度为L的区域内存在垂直于纸面里的匀强磁场一个高为L的梯形闭合属线框abcd沿垂直于磁场边界右匀速穿过磁场速度大小 sketch template
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百度教育 sketch template
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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
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11．用如图所示的实验装置研究电磁感应现象．当有电流从电流表的正极流入时指针右偏转．下列说法哪些是正确的 A．当把磁铁N极下插入线圈时 sketch template
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如图所示，电源电压恒为18V，定值电阻R1=20Ω，动变阻器R2标有“40Ω 05A”，电流表A的量程为006A，电压表量程为0 sketch template
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突破中考物理实验：探究怎样才能产生感应电流 知乎 sketch template
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如图是小华同学探究“电流与电压关系”的电路图。 sketch template
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如右图所示在探究“并联电路中干路的电流与各支路的电流关系 实验中需要分别测出abc三点的电流 1画出测量b点电流的电路图并标明 sketch template
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“探究电流与电阻关系”的实验实物图如图甲所示，定值电阻的阻值分别为5Ω、10Ω、15Ω、20Ω。（1）连接电路时现，电路中有一根导线连接错误 sketch template
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学家现两根平行导线通电后有如图所示的现象图中实线虚线分别表示通电前后的情况．1由图可知两平行通电导线之间有力的作用．当通入的 sketch template
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18．小明利用如图12甲所示电路来探究通过导体的电流跟其两端电压及其电阻的关系 1在探究电流与电压的关系时应保持 不变分析表中的 sketch template
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高中物理 《磁场及其描述》基础知识总结 知乎 sketch template
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百度教育 sketch template
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如图所示是探究电磁铁磁性的大小与哪些因素有关的实验要探究电磁铁磁性大小电流的有无的关系应选用 和 要探究电磁铁磁性大小与线圈匝数的关系 sketch template
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如图所示是某学习小组同学设计的研究“电磁铁磁性强弱 的实验电路图实验记录如下 1要判断电磁铁的磁性强弱可观察 来确定2比较下 sketch template