Electricity and magnetism

01Charging Objects — The Movement of Electrons 02Friction, Induction and Conduction 03The Electric Field of a Point Charge 04Electric Field Strength 05Force on Charges in an Electric Field 06Coulomb's Law 07The Field Between Parallel Plates 08Charged Particles Between Plates 09Electric Potential Energy and Work 10Voltage, Work and Potential Energy 11Electric Current 12Conductors, DC and AC 13Resistance and Its Factors 14Ohm's Law — Ohmic and Non-Ohmic Conductors 15Electrical Power — P = VI and P = V²/R 16Energy Loss in Circuits — P = I²R 17Series and Parallel Circuits 18Meters in Circuits — Ammeters and Voltmeters 19Analysing Series Circuits — Rₜ = ΣR and Vₜ = ΣV 20Analysing Parallel Circuits — 1/Rₜ = Σ1/R and Iₜ = ΣI 21Combination Circuits 22Magnetic Fields and Field Lines 23Magnetic Field of a Current-Carrying Wire — B = μ₀I/2πr 24The Solenoid — Structure and Field 25Magnetic Field Inside a Solenoid — B = μ₀nI 26Electromagnets — Cores and Field Strength