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一、易错解概况1.不善于运用电场线、等势面为工具,将抽象的电场形象化后再对电场的场强、电势进行具体分析;2.对静电平衡内容理解有偏差;3.在运用力学规律解决电场问题时操作不规范.二、典型例题赏析图1【例1】如图1所示,实线是一个电场中的电场线,虚线是一个负检验电荷在这个电场中的轨迹,若电荷是从a处运动到b处,以下判断正确的是()A.电荷从a到b加速度
First, the easy-to-misinterpret Profile 1. Not good at using electric field lines, equipotential surface as a tool, the abstract electric field visualization of the electric field after the field strength, potential for a specific analysis; 2 static balance understanding of the content bias; 3 . In the use of mechanical laws to solve the problem of electric field operation is not standardized. Second, the typical example Appreciation Figure 1 [Example 1] As shown in Figure 1, the solid line is an electric field in the electric field line, the dotted line is a negative test charge in this electric field Of the trajectory, if the charge is moving from a to b, the following judgment is correct () A. Charge from a to b acceleration