What happens to a magnetic field when an electric current increases?

When an electric current increases, the magnetic field produced around a conductor grows stronger. This relationship is described by Ampère's law, which states that the strength of the magnetic field is directly proportional to the electric current flowing through the conductor. As the current increases, the alignment of magnetic field lines around the conductor becomes denser, resulting in a stronger magnetic field.

In practical applications, this principle is utilized in devices like electromagnets, where increasing the current through the coil enhances the magnetic effect. Thus, as the current increases, the corresponding increase in the magnetic field's strength is an essential concept in electromagnetism.