German physicist is a term used to describe three famous scientists who made significant contributions to the field of physics. Georg Ohm was a German physicist who discovered Ohm's law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points. Max Planck was a German physicist who developed the quantum theory, which explains the behavior of matter and energy on an atomic and subatomic level. Carl Friedrich Gauss was a German mathematician and physicist who made significant contributions to many fields, including number theory, analysis, differential geometry, geodesy, magnetism, astronomy, and optics.