use of electromagnet and permanent magnet?
Answers
Explanation:
electromagnets are more commonly used for electric motors, permanent magnets can be used as well. A magnet is placed in a conductive substance, and then the magnetic field yielded by the magnet turns another piece of equipment, which rotates the motor rapidly.
Answer:
Magnets are used in many different applications given their inherent strength in relation to mass and weight. Electromagnets, because they can be turned off and on, are used in powerful pieces of equipment and vehicles, such as magnetic-levitation, or maglev, trains. However, permanent magnets are also very versatile and strong components of myriad applications as well.
A magnet is any material or substance that projects a magnetic field. A magnetic field is a type of vector field that aligns electric charges on a dipolar outlay. Magnets have both a north and south pole, which align to the earth’s magnetic northern and southern poles (and which are not fixed points on the map, but rather varying areas generally located in the regions of the geographic north and south poles). Like poles repel from one another, while unlike poles attract. Ferromagnetic materials, meaning materials which contain some degree of iron, can usually be permanently magnetized, with a catch: if magnets are heated to excessive, known temperatures, they can lose their magnetism. This can be remedied by remagnetising through a process of slowly cooling the magnet.