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电磁感应是高中物理中的主干知识,是高考的热点,电热与感应电荷量是电磁感应现象中的两个重要物理量,掌握这两个物理量的求解方法,并灵活应用,就能抓住电磁感应的本质,突破电磁感应综合型题目的难点.一、线圈在磁场中转动时感应电荷量与电热的计算问题例1边长为a的N匝正方形线
Electromagnetic induction is the main knowledge in high school physics, which is the hot spot of college entrance examination. Electrothermal and induced charge quantity are two important physical quantities in the electromagnetic induction phenomenon. Mastering the solving methods of these two physical quantities and using them flexibly can catch electromagnetic induction. The essence is to break through the difficulties of the comprehensive electromagnetic induction problem. 1. Calculation of the amount of induced charge and electric heat when the coil rotates in the magnetic field. Example 1 N square line with side length a