1B SE

ECE106: Electricity and Magnetism

Electromagnetism is a branch of physics involving the study of the electromagnetic force governed by electromagnetic fields.

Why this course is important: E&M is critical to our understanding of the universe, and power our modern society. E&M is entirely behind how Motors work.

Link to course notes here.

Common Mistakes

Don’t forget your directions at the end!! Because current density / magnetic field is a vector!!

Concepts

• Coordinate System
• Maxwell’s Equations

Electrostatics

Electrostatics is concerned with stationary charges.

• Electric Charge
• Electric Force
• Electric Field
• Electric Flux
• Gauss’s Law
• Permittivity
• Electric Energy Density

Magnetostatics

Magnetostatics is concerned with moving charges, which create steady magnetic fields.

• Magnetic Field
• Electric Potential
• Capacitor
• Electron Current
• Circuit
• Permeability
• Biot Savart Law
  • BS law with spherical coordinates, know how to do Solenoid problem, recording PW: ECE106Lec002
• Lorentz’s Force Equation
• Magnetic Flux
• Electric Susceptibility
• Current Density
• Ampere’s Law
• Magnetic Energy Density
• Electromotive Force
• Faraday’s Law (including Lenz’s Law)
• Dielectrics
• Inductance of co-axial cables
• emf
• Induced emf

Electrostatics and Magnetostatics is combined with Lorentz’s Force Equation.

Other

• Van de Graaff Generator
• Tesla Coil
• Corona Discharge
• Leyden Jar
• Solenoid