判断电势高低的六种方法

• 作 者: 王洪宗
• 机 构: 新疆克州二中,
• 出 处: 新课程学习(上)
• 发表日期: 2012年07期
• 关键词: 电势 电场力 正电荷 电场线 等势面 运动 方向判断 位移

一、根据电场线的方向判断沿着电场线的方向,电势越来越低,也可以说电场线总是由电势较高的等势面指向电势较低的等势面。二、根据电场力做功判断正电荷在电场力作用下发生位移,若电场力做正功,则说明正电荷由高电势处向低电势处运动;若电场力做负功时,正电荷由低

First, according to the direction of the electric field lines to determine along the direction of the electric field lines, the potential is getting lower and lower, it can be said that the electric field lines are always from the potential higher equipotential surface to the potential lower equipotential surface. Second, judging from the electric field force positive charge occurs under the action of the electric field force displacement, if the electric field force to do positive work, then the positive charge from high potential to low potential movement; if the electric field force negative power, the positive charge from low