The reason an electric current can create a magnetic field is due to the phenomenon of

Electromagnetic induction

Explanation:

Electromagnetic induction is defined as the production of voltage using the magnetic created by the electric current. The magnetic field is one of the components of electric lines. The other component is the electric field When the electricity is passed through a metallic conductor is acts as a temporary magnets Electromagnetic induction happens when the flux lines around a magnetic field are cut by the coils. The field lines in the permanent or temporary magnets are always from the North pole to south pole.