How Are Electros Different From Other Magnets?

An electromagnet’s main benefit compared to a standard, or permanent magnet, is that the strength of an electromagnet can be controlled. Because an electromagnet runs on electricity, its strength can be adjusted at any time based on how much electric current is allowed to flow through it. This is the greatest advantage of electromagnets, but also their greatest disadvantage, as electromagnets must have a constant flow of electrical current in order to maintain their magnetic field.