Friction is a source of what type of electricity?

Friction is primarily responsible for generating static electricity. When two different materials come into contact and then are separated, electrons can be transferred from one material to another. This transfer of electrons creates an imbalance of charge, resulting in static electricity. The accumulated charge remains in a stationary state until it discharges, typically as a spark, when it comes into contact with another conductive material.

Static electricity is common in everyday occurrences, such as when you rub your feet on a carpet and then touch a metal object, resulting in a small shock. The other types of electricity listed, such as current (which refers to the flow of electric charge), alternating current (which periodically reverses direction), and direct current (which flows in one direction), are associated with the continuous flow of electrons, rather than the buildup caused by friction and the resulting discharge characteristic of static electricity.