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掌握适当的解题方法和技巧,不仅有利于我们加深对知识的理解和掌握,也有利于我们解题技能的提高.一、弄清并判定通电导体在安培力作用下运动的程序弄清导体所在的磁场→判断导体受安培力方向→确定导体运动方向或趋势二、掌握常用方法1.等效法:环形电流可等效成小磁针,通电螺线管可等效成条形磁铁.2.电流元法:把整段导线分为许多段直电流元,先用左手定则判断每段电流元受力的方向,再判断整段导线所受合力的方向,从而确定导线运动方向.3.特殊位置法:通过转动通电导线到某个便于分析的特殊
Grasp the appropriate method and skills to solve problems, not only help us to deepen the understanding and mastery of knowledge, but also help us to improve the problem-solving skills.First, to clarify and determine the conduction conductor in the Ampere force movement program to find out the conductor Where the magnetic field → determine the direction of the conductor by Ampere force → determine the direction or trend of conductor movement Second, to master the commonly used methods 1. Equivalent method: the ring current can be equivalent to a small magnetic needle, solenoid solenoid can be equivalent to a bar magnet. Current element method: The whole conductor is divided into many segments of direct current element, first with the left hand rule to determine the direction of each current element force, and then determine the direction of the combined force of the entire section of the conductor, so as to determine the direction of wire movement. Special position method: by turning the power lead to a special analysis for ease