GEOLOGY

Detailed explanation-1: -An electropermanent magnet or EPM is a type of permanent magnet in which the external magnetic field can be switched on or off by a pulse of electric current in a wire winding around part of the magnet.

Detailed explanation-2: -Electromagnets can be turned on or off and their strength can be changed by controlling the electric current. An electromagnet is a solenoid wrapped around a bar of iron or other ferromagnetic material. It is stronger if there are more turns in the coil of wire or there is more current flowing through it.

Detailed explanation-3: -Magswitch is a device that allows a magnetic field to be turned on and off mechanically like an electromagnet but with no need for ongoing power to sustain a strong magnetic field. Like no other.

Detailed explanation-4: -Generally, no. The neodymium magnets we provide are also called, “permanent magnets.” The word “permanent” means they stay magnetized for a long time. They are always on. This is the opposite of an electromagnet, where you have to run an electric current through a wire whenever you want it to act like a magnet.

Detailed explanation-5: -A round permanent magnet is inserted into the bored hole and a handle is attached to allow rotation of the magnet. This act of rotation changes the orientation of the magnetic field. In the off position, the poles are oriented towards the non-ferrous core. The iron blocks act as keepers by bridging between both poles.