
Ampère's Law
Ampère's Law states that an electric current in a wire creates a magnetic field around it. The strength and direction of this magnetic field depend on the amount of current flowing through the wire and how the wire is shaped. Imagine wrapping a wire into a loop: the magnetic field inside the loop becomes stronger, similar to how a magnet works. This principle explains how electromagnets and electric motors operate, linking electricity and magnetism in a fundamental way. Essentially, moving electric charges produce magnetic fields, and the law quantifies this relationship.