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24．如图所示是显像管电子束运动的示意图电子枪�出的电子要先经过加速电场加速再经过偏转磁场的偏转最后射到荧光屏上设加速电场两板间的电压 Template






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tomski24．如图所示是显像管电子束运动的示意图电子枪�出的电子要先经过加速电场加速再经过偏转磁场的偏转最后射到荧光屏上设加速电场两板间的电压 coloring
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24．如图所示是显像管电子束运动的示意图电子枪出的电子要先经过加速电场加速再经过偏转磁场的偏转最后射到荧光屏上设加速电场两板间的电压 sketch template
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9．如图所示为显像管电子束偏转示意图电子质量为m电量e进入磁感应强度为B的匀强磁场中该磁场被束缚在半径为r的圆形区域内电子初速度v0 sketch template
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如图所示为电视机显像管的偏转线圈的示意图线圈中心O处的点表示电子枪 射出的电子它的方由纸内垂直指纸外当偏转线圈中的电流方如图所示 sketch template
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