Pole piece

Imagine you have a big toy car that needs a magic magnet to make it go. The car has a metal axle in the middle where you put the magnet. But the magnet by itself is not strong enough to make the car move really fast. So you need to put another piece of metal next to the magnet to help it out. This extra piece of metal is called the pole piece. The pole piece helps to focus the magic magnet's power and make the car go faster and smoother. It's like having a helper or a best friend that helps you do something better. The same thing happens in machines and speakers that use magnets. They also have a pole piece that helps the magnet be more efficient and powerful.