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电磁感应的题目往往综合性较强,知识联系较多,涉及力学知识(如牛顿运动定律、功、动能定理、能量守恒定律等)、电学知识(如电磁感应定律、楞次定律、安培力、直流电路知识、磁场知识等)等多个知识点,突出考查考生理解能力、分析综合能力,尤其从实际问题中抽象概括构建物理模型的创新能力.题型一:以导体棒切割磁感线产生的电磁感应问题为背景,要求对导体棒的运动进行动态分析、受
Electromagnetic induction problems are often more comprehensive and knowledge-related, involving mechanical knowledge (such as Newton’s laws of motion, work, kinetic energy theorem, energy conservation law, etc.), electrical knowledge (such as electromagnetic induction law, Lenz’s law, Ampere force, DC circuit knowledge, magnetic field knowledge, etc.) and many other knowledge points, highlighting examinee’s comprehension ability, analysis and comprehensive ability, and especially abstracting and constructing the physical model’s innovation ability from actual problems. Question type one: Cutting magnetic induction lines with conductor bars The background of electromagnetic induction problems requires dynamic analysis of the movement of the conductor bars.