* Opposite charges attract: This is a fundamental principle of electromagnetism. Imagine a positively charged object and a negatively charged object. The positive charges on one object are drawn towards the negative charges on the other. This attraction is what holds atoms together, and it's a force that plays a crucial role in many aspects of our world.
* Example: If you rub a balloon on your hair, the balloon will become negatively charged and your hair will become positively charged. When you bring the balloon close to your hair, you'll see the hairs stand up, attracted to the balloon.
Key Takeaway: Opposite charges attract, and this attraction is what drives many electrical phenomena.
