Magnetostatics: Magnetic Forces and Levitation

This lecture covers the calculation of magnetic forces and torques on objects in non-uniform magnetic fields, including the magnetic levitation of various materials. It also explores the principles behind electromagnetic and magnetostatic actuators, as well as the use of superconductors for levitation. The instructor discusses the levitation of diamagnetic and ferromagnetic objects, highlighting the role of different materials in stabilizing the levitation. The lecture concludes with a summary of the forces and torques involved, all derived from the Lorentz force.