What phenomenon involves the interaction of charged particles?

The phenomenon that involves the interaction of charged particles is indeed electricity. Electricity arises from the movement and interaction of electrons, which are negatively charged particles. When charged particles move, they can create an electric current, which is the flow of electric charge. The interactions between these charged particles can lead to various effects, including electric fields and electromagnetic forces.

In the context of electricity, charged particles can attract or repel each other depending on their charges. This dynamic is fundamental to numerous electrical phenomena, such as the operation of circuits, the functioning of electrical devices, and the generation of electromagnetic waves. Additionally, electricity is essential for powering homes, businesses, and electronic devices, making it a critical component in both physical science and everyday life.