Know more about it here. In this way, how is magnetic field produced?
Magnetic fields are produced by electric currents, which can be macroscopic currents in wires, or microscopic currents associated with electrons in atomic orbits. The magnetic field B is defined in terms of force on moving charge in the Lorentz force law.
Also, how does metal become magnetized? Ferromagnetism is a phenomenon that occurs in some metals, most notably iron, cobalt and nickel, that causes the metal to become magnetic. The atoms in these metals have an unpaired electron, and when the metal is exposed to a sufficiently strong magnetic field, these electrons' spins line up parallel to each other.
Accordingly, how does a bar magnet produce a magnetic field?
So magnets are made by putting a magnetic object under a magnetic field, this makes all the domains spin in the same direction, which is what defines a magnet. Also electricity running through a wire creates a magnetic field because it has a flow of electrons in one direction.
How is magnetism measured?
The strength of a magnet is most commonly measured using a magnetometer, also known as a gaussmeter, which are used to measure everything from the Earth's magnetic field to small magnets. A magnetometer consists of a small conductor or semiconductor at the tip of a probe through which an electrical current is passed.
