The Early History -- The Early History -- Fundamentals -- The Maxwell Equations -- Electric Fields -- Constant Magnetic Fields -- Time-dependent Magnetic Fields: The Law of Faraday -- Moving Conductors -- Ohm’s Law for Moving Conductors -- Charges Inside Moving Conductors -- Nine Examples: Magnetic Fields in Moving Conductors -- Case Study: The Azimuthal Magnetic Field in the Earth’s Core -- Natural Dynamos -- Case Study: The Disk Dynamo Model for Natural Dynamos -- Three Case Studies: Magnetic Flux Tubes, Flux Ropes, and Flux Coils -- Case Study: Solar Magnetic Elements -- Case Study: Sunspots -- Case Study: Solar Spicules -- Case Study: Solar Coronal Loops as Self-Channeled Proton Beams I -- Case Study: Solar Coronal Loops as Self-Channeled Proton Beams II -- Appendices -- Characteristic Lengths and Times, a Justification1 -- SI prefixes.

This book concerns the generation of electric currents and of electric space charges inside conducting media that move in magnetic fields. The authors postulate nothing but the Maxwell equations. They discuss at length the disk dynamo, which serves as a model for the natural self-excited dynamos that generate magnetic fields such as that of sunspots. There are 36 Examples and 13 Case Studies. The Case Studies concern solar phenomena -- magnetic elements, sunspots, spicules, coronal loops -- and the Earth's magnetic field.