静电场与重力场一样 ,都是保守力场 ,存在电势 ,电场的显著性质是对置入电场里的电荷有力的作用 ,有力作用则必然存在力的瞬时效应和空间位置积累效应 ,在物理情境里提供的大都是匀强电场 ,而且是带电体在恒力作用下的运动 ,解决的是匀变速运动 (匀变速直线运动、类平抛运动 )? The electrostatic field is a conservative force field like a gravitational field. It has a potential. The significant nature of an electric field is a powerful effect on the electric charge placed in an electric field. A strong force must have the instantaneous effect of force and the spatial location accumulation effect in the physical situation. Most of what is provided is a uniform electric field, and it is a movement of a charged body under the action of a constant force. What is solved is a uniform speed change motion (uniform linear motion, parallel motion)?