Now take that same balloon and drag it over to the wall. You will notice that the blue negative charges move away in the wall and then the balloon sticks to the wall. This charge distribution is called induction, because the negative charges move without any touching. Why does the balloon stick to the wall?
The balloon sticks to the wall due to the phenomenon of electrostatic attraction. When the negatively charged balloon is brought near the wall, the negative charges on the surface of the wall are repelled by the negative charges on the balloon. As a result, the negative charges on the wall move away from the area nearest to the balloon, leaving a region with a relative positive charge on the wall. This positive region on the wall is attracted to the negative charges on the balloon, causing the balloon to stick to the wall.
