Electromagnets and Their Applications
Electric current flowing through a wire wound around an iron nail creates a magnetic field, which caused an iron nail to become a temporary magnet. The nail can then be used to pick up paper clips. When the electric current is cut off, the nail loses its magnetic property and the paper clips fall off. The students will make an elecromagnet that will attract a paper clip. They will then increase the strength of an electromagnet(improve on their initial design) so that it will attract an increased number of paper clips. The participants will also compare the properties of magnets and electromagnets. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field. Electromagnets are widely used as components of other electrical devices, such as motors. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel. We will investigate engineering and industrial applications of the case study.
Keywords- Electromagnet, Application, Engineering.