Biot Theory is a concept in physics that describes the behavior of electric currents in magnetic fields. It is named after the French physicist Jean-Baptiste Biot, who, along with Felix Savart, formulated the relationship between electric currents and the magnetic fields they produce. The theory helps explain how moving charges create magnetic forces, which is fundamental in understanding electromagnetism. The theory is often summarized by the Biot-Savart Law, which quantifies the magnetic field generated by a steady electric current. This law is essential for calculating the magnetic field around conductors and is widely used in various applications, including electrical engineering and physics research.