Electricity principles

The article provides a synthesis of the fundamental concepts of electricity and magnetism, starting with Michael Faraday's discoveries on electromagnetic induction. It explores atomic structure, highlighting the role of valence electrons in electrical conductivity. Newton's and Coulomb's laws are explained to understand gravitational and electrical forces. The article distinguishes between direct current and alternating current, detailing their respective characteristics, including notions of active, reactive, and apparent power. The dangers of electric current to the human body are discussed, emphasizing the importance of protective devices like differential circuit breakers. Finally, it focuses on earthing systems and electrical standards, such as NF C15-100, which ensure the safety and compliance of installations.