Classical electromagnetism is a fundamental branch of physics that explores the interactions between electric charges and currents, extending the classical Newtonian model to describe electromagnetic phenomena when quantum effects are insignificant. This classical field theory unified phenomena previously studied separately, with Michael Faraday's experiments suggesting the electromagnetic field and James Clerk Maxwell's mathematical description in his 1873 A Treatise on Electricity and Magnetism being pivotal. A core concept is the Lorentz force, which quantifies the force an electromagnetic field exerts on charged particles, demonstrating the combined influence of electric and magnetic fields on their motion. It provides a comprehensive framework for understanding a wide range of phenomena, from the behavior of light as an electromagnetic wave to the operation of electrical devices.