Electromagnetism - Theory and Application

Aim

The course aims to give an introduction electromagnetism and the role it has in applications of technical relevance. After successful examination the student should be able to;

• solve problems related to electrostatics and magnetostatics
• solve problems related to induction and electromagnetic waves
• independently using electromagnetic theory to solve with problems
• relate theory to applications based on electric and magnetic phenomena
• calculate and visualize electromagnetic fields using computer simulations
• conduct basic measurements related to electromagnetic fields

Content

Relevant mathematical concepts: Coordinate systems scalar fields and vector fields. Electrostatics: Electric Field Intensity, Coulomb's law, Potential, Gauss's law. Magnetostatics: Steady Electric Currents, Current Density, Equation of Continuity, Magnetic Flux Density, Biot-Savart law, Ampere's Circuital law, Magnetic Materials, Magnetic Circuits, Magnetic Dipole, Motion of Charged Particles in Electromagnetic Fields. Dielectric and magnetic materials: Capacitance, Resistance, Electric Dipole, Polarization, Electrostatic Energy and Forces. Magnetization, Magnetostatic Energy and Forces. Induction: Time-Varying Electromagnetic Fields, Faraday's law, Electromotive Force, Displacement Current Density. Electromagnetic Waves: Poynting Vector. Reflection and refraction. Applications related to electromagnetism: wireless communication, memory technology, etc. For the interested few, vector calculus and electromagnetic theory on differential form: Divergens, curl, Gauss's and Stoke's theorems. Poisson's and Laplace's Equations. Method of images. Boundary conditions.