Magnetic Dipole and Field Lines

This lecture covers the concept of a magnetic dipole, the torque and force acting on it, the relation between a dipole and angular momentum, the dipole field, and the analogy between a solenoid and a permanent magnet. It also explores the application of these concepts to galvanometers, motors, and the magnetic field originating from a dipole. The lecture delves into the energy of a magnetic moment in a field, the magnetic dipole and angular momentum, and the field lines of a solenoid and a permanent magnet.