Electromagnetism describes interactions between charged particles via electromagnetic fields. It is one of four fundamental forces of nature. Combines electrostatics and magnetism, which are distinct but closely intertwined
Born in 1791 in London to a poor Glasite family. Self-educated as a bookbinder's apprentice from age 14. Became Davy's assistant at Royal Institution in 1813. Married Sarah Barnard in 1821, had no children
μ0 quantifies magnetic field strength induced by electric current. Has SI units kg⋅m⋅s−2⋅A−2 or N⋅A−2. Value as of 2022 CODATA is 1.25663706127(20)×10−6 N⋅A−2
Generators convert mechanical or fuel-based energy into electric power. First electromagnetic generator, Faraday disk, invented by Michael Faraday in 1831. Generators consist of rotating rotor and stationary stator with magnetic field
Ampere (A) is SI unit of electric current, equal to 1 coulomb per second. Named after André-Marie Ampère, considered father of electromagnetism. Established as standard unit at 1881 International Exposition of Electricity
Textbook covers modern physics principles for scientists and engineers. Fifth edition published by Pearson Education in 2019. Contains 1468 pages in English language