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怎樣根據粒子運動軌迹确定電荷的正負
怎樣根據粒子運動軌迹确定電荷的正負
更新时间:2024-09-29 16:20:39

  1、帶電粒子在磁場中作圓周運動的半徑r=mv/qB。鉛闆上下半徑不同。下面半徑大,速度也大。

  2、所以粒子從下穿過闆向上(穿過時損失動能和速度)同時由粒子的偏轉可知磁場力指向彎曲一側。由左手定則可知粒子帶正電。

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