In the 9th Class Electrical Wiring notes, Chapter 3 on Magnetism is an essential topic that lays the foundation for understanding the fundamental principles of electricity and its practical applications. This chapter delves into the fascinating world of magnetism, elucidating the properties of magnets and magnetic fields. Students will explore how magnets attract or repel each other, and how this phenomenon is integral to the operation of various electrical devices and machines.
Furthermore, the chapter sheds light on electromagnetism, explaining how electric currents generate magnetic fields and how this principle is harnessed in devices like electromagnets and transformers. With a comprehensive overview of magnetism, students gain the knowledge and insights necessary for comprehending advanced electrical systems and circuits, making this chapter a crucial stepping stone in their electrical education journey.