A "Mag field" refers to a magnetic field, which is a region in space where magnetic forces can be detected. It is created by the movement of electric charges, such as current flowing through a wire.
A magnetic field is created in a current carrying square by the flow of electric current through the wire. The current creates a circular magnetic field around the wire, and when the wire is formed into a square, the magnetic field is concentrated within the square shape.
The strength of the magnetic field in a current carrying square is affected by the amount of current flowing through the wire, the distance from the wire, and the shape and size of the square. Additionally, the material of the wire and the presence of any external magnetic fields can also affect the strength of the magnetic field.
The direction of the current determines the direction of the magnetic field in a current carrying square. The magnetic field will always be perpendicular to the direction of the current, meaning that if the current is flowing clockwise through the square, the magnetic field will flow counterclockwise around the square.
A current carrying square and its magnetic field have many practical applications, including in motors and generators, where the magnetic field interacts with other magnetic fields to create motion and electricity. They are also used in magnetic resonance imaging (MRI) machines, particle accelerators, and many other technological devices.
