如图17-6所示,水平放置的平行金属板与电源相连,板间距离为d,板间有一质量为m.电量为q的微粒恰好处于静止状态,若再将开关断开,再将两板间距离先增大为2d,再减小到d/2,则微粒将 ( )A.先向上
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![如图17-6所示,水平放置的平行金属板与电源相连,板间距离为d,板间有一质量为m.电量为q的微粒恰好处于静止状态,若再将开关断开,再将两板间距离先增大为2d,再减小到d/2,则微粒将 ( )A.先向上](/uploads/image/z/11276231-23-1.jpg?t=%E5%A6%82%E5%9B%BE17-6%E6%89%80%E7%A4%BA%2C%E6%B0%B4%E5%B9%B3%E6%94%BE%E7%BD%AE%E7%9A%84%E5%B9%B3%E8%A1%8C%E9%87%91%E5%B1%9E%E6%9D%BF%E4%B8%8E%E7%94%B5%E6%BA%90%E7%9B%B8%E8%BF%9E%2C%E6%9D%BF%E9%97%B4%E8%B7%9D%E7%A6%BB%E4%B8%BAd%2C%E6%9D%BF%E9%97%B4%E6%9C%89%E4%B8%80%E8%B4%A8%E9%87%8F%E4%B8%BAm%EF%BC%8E%E7%94%B5%E9%87%8F%E4%B8%BAq%E7%9A%84%E5%BE%AE%E7%B2%92%E6%81%B0%E5%A5%BD%E5%A4%84%E4%BA%8E%E9%9D%99%E6%AD%A2%E7%8A%B6%E6%80%81%2C%E8%8B%A5%E5%86%8D%E5%B0%86%E5%BC%80%E5%85%B3%E6%96%AD%E5%BC%80%2C%E5%86%8D%E5%B0%86%E4%B8%A4%E6%9D%BF%E9%97%B4%E8%B7%9D%E7%A6%BB%E5%85%88%E5%A2%9E%E5%A4%A7%E4%B8%BA2d%2C%E5%86%8D%E5%87%8F%E5%B0%8F%E5%88%B0d%2F2%2C%E5%88%99%E5%BE%AE%E7%B2%92%E5%B0%86+%28+%29A.%E5%85%88%E5%90%91%E4%B8%8A)
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