带电粒子在电场中的运动问题,实质是力学问题,通常从受力情况,运动情况,和能量的转换情况等入手讨论、研究。对于微观粒子,如质子、电子、离子等,通常可以不计重力,但是对于带电微粒,如带电油滴、灰尘等,一般需要考虑重力。1带电粒子在匀强电场中的运动带电粒子沿电场线平行的 The problem of the movement of charged particles in an electric field is essentially a mechanical problem. It is usually discussed and studied from the aspects of stress, movement, and energy conversion. For microscopic particles, such as protons, electrons, ions, etc., gravity is usually not considered, but for charged particles, such as charged oil droplets, dust, etc., gravity is generally considered. 1 The movement of charged particles in a uniform electric field The charged particles are parallel along the electric field lines