如图3图所示为某示波管内的聚焦电场，实线和虚线分别表示电场线和等势线，两电子分别从a、b两点运动到c点，设电场力对两电子做的功分别为wa和wb Sketch Coloring Page

如图3图所示为某示波管内的聚焦电场，实线和虚线分别表示电场线和等势线，两电子分别从a、b两点运动到c点，设电场力对两电子做的功分别为wa和wb Template

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More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

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anonymous

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sketch #4279 Winnie the Pooh by Douglas Dalmora

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anonymous
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tomski如图3图所示为某示波管内的聚焦电场，实线和虚线分别表示电场线和等势线，两电子分别从a、b两点运动到c点，设电场力对两电子做的功分别为wa和wb coloring

如图3图所示为某示波管内的聚焦电场，实线和虚线分别表示电场线和等势线，两电子分别从a、b两点运动到C点，设电场力对两电子做的功分别为Wa和Wb sketch template

如图所示是一个示波管工作原理图电子经加速后以速度v0垂直进入偏转电场离开电场时偏转量是h两平行板间的距离为d电势差是U板长是L．每 sketch template

题目如图所示是一个说明示波管工作原理的示意图电子经电压U1加速后垂直进入偏转电场离开电场时的偏转量是h两平行板间的距离为d电势差为 sketch template

示波器的示波管可以视为加速电场与偏转电场的组合如图所示若已知加速电压为U1偏转电压为U2偏转极板长为L板间距为d且电子被加速前的初 sketch template

如图所示为真空示波管的示意图电子从灯丝K�出经灯丝与A板间的加速电压U1加速从A板中心孔沿中心线KO射出然后进入由两块平行�属板MN sketch template

如图所示是示波器的原理示意图电子经电压为U1的加速电场加速后进入电压为U2的偏转电场离开偏转电场后打在荧光屏上的P点．P点与O点的距离叫 sketch template

16．如图所示为两列简谐横波在同一绳上传播时某时刻的波形图质点M的平衡位置为x = 02m则下列说法中正确的是 A．这两列波�生 sketch template

如图1所示甲为某一简谐波在t＝10 S时刻的图象乙为甲图中C点的振动图象则下列说法正确的是 A．甲图中B点的运动方��左B．经过0 sketch template

如图所示，在a、b两点固定着两个带等量异种电荷的点电荷，c、d两点将a、b两点的连线三等分，e、f是a、b两点连线的中垂线上的两点，且e、f到 sketch template

小敏用如图甲所示的电路图研究通过导体的电流与导体电阻的关系电源电压恒为6V改变电阻R的阻值调节�动变阻器�片保持R两端的电压不变记 sketch template

百度教育 sketch template

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

如图所示为一横波在某一时刻的波形图已知质点F此时刻运动方��下则 A．波�右传播B．质点C比质点B先回到平衡位置C．质点C此时刻位移为 sketch template

百度教育 sketch template

如图所示为两组平行�属板一组竖直放置一组水平放置今有一质量为m的电子静止在竖直放置的平行�属板的A点经电压U0加速后通过B点进入两板 sketch template

如图所示为一列沿x轴正方�传播的机械波在某一时刻的图象由图可知这列波的振幅A波长λ和x=l米处质点的速度方�分别为 A．A=O4 sketch template

如图所示为某同学实验得到的小灯泡灯丝电阻的U I关系曲线图．1在左下框中画出实验电路图根据该电路图可得到U I关系的完整曲线可用的 sketch template

如图2所示电路图中定值电阻和�动变阻器R串联两端的电压分别为当�动变阻器的�片P�右�动过程中 A 变小也变小 B 变小不变 sketch template

题目如图所示为交流�电机示意图匝数为n=100匝的矩形线圈边长分别为a=10cm和b=20cm内阻为r=5Ω在磁感应强度B=0 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

图所示为某同学测定小灯泡电阻的实物连接图．在电压表尚未接入电路之前已存在两处明显的连接错误请你指出 1 2 ． 3假定 sketch template

如图所示为某一电场的电场线在电场中有ab两点试比较ab两点场强EaEb的大小引入一电荷量很小的点电荷比较该点电荷在ab 两点所 sketch template

两个定值电阻R1、R2并联在电路中如图甲所示它们的电流与其两端的电压关系如图乙所示闭合开关S则R1R2产生的热量之比为 A sketch template

如图所示为某电场中的一条电场线沿电场线方�有MN两点下列说法中正确的是 A正点电荷在M点的电势能比在N点的电势能大 B正点电荷在M sketch template

如图所示正电荷在电场中沿某一电场线从A点移动到B点在此过程中 A．电场力一定不断减小B．电场力做正功C．电场力一定保持不变D．电势能 sketch template

如图所示为某一电场的电场线在电场中有ab两点试比较ab两点场强EaEb的大小引入一电荷量很小的点电荷比较该点电荷在ab 两点所 sketch template

如图所示的电路中电源电压保持不变R为定值电阻当开关闭合时标有“6V 3W 的小灯泡L恰好正常�光若保持R不变将L换成另一只标有 sketch template

如图所示为某种调光型台灯中使用的电位器示意图P为旋片可随转动旋钮改变在碳膜上的位置AB分别连在碳膜两端以笔画线将a图连在b图所示电路 sketch template

如图所示甲乙两物体的s T图像则 A甲乙两物体都作匀速直线运动 B若甲乙两物体在同一直线上运动则一定会相遇 Ct1时刻 sketch template

如图所示为实验室电磁炮的模型图在倾角θ=37°的绝缘斜面上固定两条不计电阻宽d=1m的平行�属导轨．导轨处在垂直斜面�下B=2T的匀强磁场 sketch template

如图所示为某电场中的一条电场线沿电场线方�有MN两点下列说法中正确的是 A正点电荷在M点的电势能比在N点的电势能大 B正点电荷在M sketch template

题目如图所示竖直放置的U形管左端封闭右端开口左右两管的横截面积均为S=2cm2在左管内用水银封闭一段长为l1=15cm温度为 sketch template

如图所示电路中电源电压U=45V且保持不变定值电阻R1=5Ω变阻器R2最大电阻为20Ω电流表量程为0 06A电压表量程为0 sketch template

如图3 5 3所示一个带正电荷的小球沿水平光�绝缘的桌面�右运动飞离桌子边缘A最后落到地板上设有磁场时飞行时间为t1水平射程为x1 sketch template

如图所示为某质点作直线运动的x T图象关于这个质点在4s内的运动情况下列说法中正确的是 A．质点始终�同一方�运动B．质点先�负方� sketch template

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