Drude-Sommerfeld model

The Drude-Sommerfeld model describes how electrical conduction works in metals. It treats electrons as free particles moving through a lattice of positive ions. Electrons collide randomly with atoms, causing resistance to current flow. This model improves upon earlier ideas by considering quantum effects, acknowledging electrons behave as wave-like particles, which helps explain properties like electrical conductivity and heat capacity more accurately. Overall, it provides a fundamental understanding of how electrons move in metals, leading to better insights into their electrical and thermal behaviors.