Lecture
This lecture covers sections 5.3 to 5.7 of the electromagnetism course, focusing on magnetodynamics, induced currents, self-inductance, RL circuits, and energy storage in solenoids. It explains the delay in current increase in RL circuits, the concept of self-inductance, and the influence of ferromagnetic cores on inductance. The lecture also discusses the characteristics of RL circuits, the calculation of induced potential differences, and the energy density of magnetic fields. Practical examples and experiments are used to illustrate these concepts.