What is an electromagnet Describe the construction and working of an electromagnet with the help of a labelled diagram
Dear Student
Electromagnet is formed when electric current flows through a coil (conductor) wrapped around a core (of metal). Its magnetism lasts till electricity flows through it.
If a wire is wrapped around a ferromagnetic material (those which are attracted by a magnet) and a current is flown through the wire, the material behaves like a magnet. This phenomenon is known as electromagnetism. The electromagnet can attract other ferromagnetic material just like any magnet. Usually a soft iron-core is used for good results. By such a phenomenon you get a temporary magnet whose magnetic property can be switched on or off by a switch.
Electromagnet is formed when electric current flows through a coil (conductor) wrapped around a core (of metal). Its magnetism lasts till electricity flows through it.
If a wire is wrapped around a ferromagnetic material (those which are attracted by a magnet) and a current is flown through the wire, the material behaves like a magnet. This phenomenon is known as electromagnetism. The electromagnet can attract other ferromagnetic material just like any magnet. Usually a soft iron-core is used for good results. By such a phenomenon you get a temporary magnet whose magnetic property can be switched on or off by a switch.