Edward H. Hall

Edward H. Hall was an American physicist best known for discovering the phenomenon of diamagnetism in 1936, which describes how materials respond to magnetic fields. He also developed the Hall effect in 1879, which shows that a magnetic field applied to a moving electric current creates a voltage perpendicular to the current. This discovery has important applications in sensing magnetic fields and in electronic devices. Hall's work significantly advanced our understanding of electromagnetism and materials science, and his contributions are foundational in physics and engineering.