Vertical deflection

When you watch TV, you see pictures on the screen. These pictures are made up of tiny dots called pixels. The TV also has some things called electron guns that shoot electrons at the back of the screen. These electrons make the pixels light up, which is how you see the picture.

Now, sometimes the TV needs to move the picture up or down to show everything correctly. This is called vertical deflection. It's like if you were drawing in your coloring book and you started at the top of the page, but then you needed more room, so you moved your drawing down.

The TV does this by changing the way the electron guns shoot electrons at the back of the screen. This makes the pixels on the screen move up or down, so the picture moves too. It's like if you had a bunch of stickers on your coloring book, and you moved them all up or down to make more room.

Vertical deflection is important because it helps make sure you can see the whole picture on the screen. Without it, some parts might get cut off or look funny. So, the TV uses vertical deflection to keep everything in the right place and make sure you can enjoy your favorite shows and movies!