When a compass is brought close to an electrical current coil, the needle deflects due to the magnetic field created by the electric current. A magnet is a molecule with the ability to attract iron and nickel, as well as other metals and nickel-based materials, towards it. The North Pole and the South Pole are the two poles of a magnet.
In this chapter, we will learn about the following topics:
To begin with, let us understand some basics of the chapter.
What are the magnetic fields?
The magnetic field is the zone around a magnet in which the magnet's force may be observed or sensed. Magnetism is a vector quantity since it has both a magnitude and a direction.
What are magnetic field lines?
The magnetic field that surrounds a magnet creates a pattern known as field lines. Field lines are graphical or pictorial representations of the magnetic field's direction and magnitude around a magnet.
What is an electromagnet?
When electricity passes through a conductor, it begins to act like a magnet. An electromagnet is a name given to an electricity-conducting conductor.
What is the right-hand thumb rule?
The Right-Hand Thumb Rule asserts that if you hold electrical conductors in your right hand with your thumb pointing in the direction of the current, your fingers will wrap around it in the direction of the magnetic field lines.