Biot–Savart law

The Biot-Savart Law is a scientific way of explaining how electricity and magnetism work together. It says that an electric current (like the kind we get from the outlets in our homes) creates a magnetic field around it. This magnetic field follows certain rules that scientists can calculate. The Biot-Savart Law explains these rules. Basically, it says that the strength of the magnetic field is related to the amount of current and how fast it is moving, and it also depends on how far away you are from the current.