Drude model

The Drude model explains how electrical conductivity works in metals by treating electrons as tiny particles that move freely within the metal. These electrons randomly scatter off atoms and other electrons, which creates resistance to their flow. When an electric field is applied, electrons gain momentum and move as an electric current. The model helps predict how metals conduct electricity and respond to magnetic fields, based on properties like electron density and average collision time, providing a foundational understanding of metallic conduction in solid-state physics.