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专题72电磁感应中的图像问题_4.2025物理总复习_2023年新高复习资料_专项复习_2023《微专题·小练习》·物理·新教材·XL-5

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专题72电磁感应中的图像问题_4.2025物理总复习_2023年新高复习资料_专项复习_2023《微专题·小练习》·物理·新教材·XL-5
专题72电磁感应中的图像问题_4.2025物理总复习_2023年新高复习资料_专项复习_2023《微专题·小练习》·物理·新教材·XL-5
专题72电磁感应中的图像问题_4.2025物理总复习_2023年新高复习资料_专项复习_2023《微专题·小练习》·物理·新教材·XL-5
专题72电磁感应中的图像问题_4.2025物理总复习_2023年新高复习资料_专项复习_2023《微专题·小练习》·物理·新教材·XL-5

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专题 72 电磁感应中的图像问题 1.如图甲所示,线圈ab、cd绕在同一软铁芯上,若线圈ab中电流i与时间t的关系图 线如图乙所示,则在这段时间内,下列关于线圈cd中产生的感应电流i 与时间t的关系图 cd 线,正确的是( ) 2.(多选)如图甲所示,在垂直纸面向里的匀强磁场中,一个线圈与一个电容器相连, 线圈平面与匀强磁场垂直,电容器的电容C=60 μF,穿过线圈的磁通量Φ随时间t的变化 如图乙所示,下列说法不正确的是( ) A.电容器下极板电势高于上极板 B.线圈中磁通量的变化率为3 Wb/s C.电容器两极板间电压为2.0 V D.电容器所带电荷量为120 C 3.如图甲所示,光滑导轨水平放置在竖直方向的匀强磁场中,匀强磁场的磁感应强度 B随时间的变化规律如图乙所示(规定向下为正方向),导体棒ab垂直导轨放置,除电阻R 的阻值外,其余电阻不计,导体棒ab在水平外力F的作用下始终处于静止状态.规定a→b 的方向为电流的正方向,水平向右的方向为外力的正方向,则在0~2t 时间内( ) 04. [2022·湖北省检测]如图所示,宽度为d的两条平行虚线之间存在一垂直纸面向里的匀 强磁场,一直径小于d的圆形导线环沿着水平方向匀速穿过磁场区域,规定逆时针方向为 感应电流的正方向,由圆形导线环刚进入磁场开始计时,则关于导线环中的感应电流 i随 时间t的变化关系,下列图像中可能的是( ) 5. [2022·山西五地四市联考]如图所示,等腰直角三角形区域内有垂直于纸面向里的匀强 磁场,左边有一形状与磁场边界完全相同的闭合导线框,线框斜边长为l,线框从图示位置 开始水平向右匀速穿过磁场区域,规定线框中感应电流逆时针方向为正方向,其感应电流i 随位移x变化的图像正确的是( ) 6. 如图所示,在平面直角坐标系xOy的第一、三象限内有垂直该坐标平面向里的匀强磁场,二者磁感应强度相同,圆心角为90°的扇形导线框OPQ以角速度ω绕O点在图示坐标 平面内沿顺时针方向匀速转动.规定与图中导线框的位置相对应的时刻为t=0,导线框中 感应电流以逆时针为正方向.则关于该导线框转一周的时间内感应电流i随时间t的变化图 像,下列正确的是( ) 7.[2022·吉林省四校联考](多选)如图甲所示,两平行虚线间存在磁感应强度大小B= 0.05T、方向与纸面垂直的匀强磁场,一正方形导线框 abcd位于纸面内,cd边与磁场边界 平行.已知导线框一直向右做匀速直线运动,速度大小为 1 m/s,cd边进入磁场时开始计 时,导线框中感应电动势随时间变化的图线如图乙所示(感应电流的方向为顺时针时,感应 电动势取正).下列说法正确的是( ) A.导线框的边长为0.2 m B.匀强磁场的宽度为0.6 m C.磁感应强度的方向垂直纸面向外 D.在t=0.2 s至t=0.4 s这段时间内,c、d间电势差为零 8.[2022·福建龙岩三模](多选)如图所示,在竖直平面内有四条间距均为L的水平虚线 L 、L 、L 、L ,在L 、L 之间和L 、L 之间存在磁感应强度大小相等且方向均垂直纸面 1 2 3 4 1 2 3 4 向里的匀强磁场.现有一矩形金属线圈abcd,ad边长为3L.t=0时刻将其从图示位置(cd边 与L 重合)由静止释放,cd边经过磁场边界线L 时开始做匀速直线运动,cd边经过磁场边 1 3 界线L 、L 、L 时对应的时刻分别为t 、t 、t ,整个运动过程线圈平面始终处于竖直平面 2 3 4 1 2 3 内.在0~t 时间内,线圈的速度v、通过线圈横截面的电量q、通过线圈的电流i和线圈产 3 生的热量Q随时间t的关系图像可能正确的是( )9. 如图所示的匀强磁场中有一根弯成45°的金属线POQ,其所在平面与磁场垂直,长直 导线MN与金属线紧密接触,起始时 OA=l ,且MN⊥OQ,所有导线单位长度电阻均为 0 r,MN匀速水平向右运动的速度为v,使MN匀速运动的外力为F,则外力F随时间变化的 规律图像正确的是( )
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  1. CONNECT:[ UseTime:0.000620s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000940s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000344s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000261s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000462s ]
  6. SELECT * FROM `set` [ RunTime:0.000203s ]
  7. SHOW FULL COLUMNS FROM `wendang` [ RunTime:0.000526s ]
  8. SELECT * FROM `wendang` WHERE `id` = 369735 LIMIT 1 [ RunTime:0.000527s ]
  9. UPDATE `wendang` SET `liulancishu` = 1 WHERE `id` = 369735 [ RunTime:0.013650s ]
  10. UPDATE `wendang` SET `lasttime` = 1773090428 WHERE `id` = 369735 [ RunTime:0.000460s ]
  11. SELECT * FROM `wendang` WHERE `id` < 369735 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000427s ]
  12. SELECT * FROM `wendang` WHERE `id` > 369735 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000906s ]
  13. SELECT * FROM `wendang` WHERE `id` <> 369735 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.012087s ]
  14. SELECT * FROM `wendang` WHERE `id` <> 369735 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002994s ]
  15. SELECT * FROM `wendang` WHERE `id` <> 369735 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008667s ]
0.128778s