Résumé de section

  • Chapter 2 delves into magnetostatic field theory, analyzing steady magnetic fields produced by constant currents, building on electrostatics principles.

    It covers the Biot-Savart law for field computation from current elements, Ampère's circuital law ∮ H · dl = I_enc for symmetric cases, and magnetic vector potential A where B = ∇ × A. Materials introduce B, H, and M relations via permeability μ.

    Topics include solenoids, toroids, force on current-carrying wires (F = I L × B), and torque on magnetic dipoles, essential for motors and transformers.