一、磁介质(magnetic medium)磁介质中的真空中的介质磁化后的总磁感强度磁感强度附加磁感强度

一、引起磁通量变化的原因 （1)稳恒磁场中的导体运动,或者回路面积变化、取向变化等

一、自感电动势自感(self-inductance) 穿过闭合电流回路的磁通量Φ=LI

1.电流 2.欧姆定律的微分形式

一、波(wave) 1、波动是振动的传播过程. 2、振动是激发波动的波源

1. Differential equation of a simple harmonicoscillation and its solution

Collisions: All around us (cars, buses) Grand astronomical scale (stars, galexies) Nuclear, atomic and molecular physics The impulse-momentum theorem relates the change in the momentum of a system to the total force on it and the time interval during which this total forces acts

1. Why we introduce the concepts of work and energy? F ma CWE theorem r r total = CWE theorem Conservation of energy (More universal) 2. About the systems that we discuss Ignore the size, internal structure, internal motion, deformations, and thermal effects

一、波动能量的传播 考虑横波的波函数

一、牛顿环(Newton rings)由一块平板玻璃和一平凸透镜组成