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交变电场指电场强度、电压或电势随时间呈周期性变化的电场.带电体在此类电场中的运动往往存在一定的周期性和临界条件,要求学生会综合运用物理学规律和数学几何关系求解.根据物理学科的特点,从物理模型角度探究交变电场可能构建的题型,并归纳出相应的解题策略.
Alternating electric field refers to the electric field whose electric field strength, voltage or potential changes cyclically with time.The charged body often has some periodicity and critical condition in the movement of such electric field, and requires the students to use the laws of physics and mathematical geometric relationship According to the characteristics of physics, this paper explores the types of problems that alternating electric fields may construct from the perspective of physical models and sums up the corresponding problem solving strategies.