Biot-Savart Law

The Biot-Savart Law describes how electric currents create magnetic fields. It states that an electric current flowing through a wire generates a magnetic field around it, and the strength and direction of this field depend on both the current's magnitude and the wire's shape. Specifically, the law can calculate the magnetic field at a certain point in space by considering contributions from each small segment of the current-carrying wire. This principle is fundamental in magnetostatics, helping us understand phenomena like the magnetic field around a straight wire or a loop of wire.