Static shock is an unpleasant sensation caused by the sudden flow of electric charge between two objects. It can occur when two objects with different electrical charges come into contact. The most common example of static shock is when a person touches a doorknob after walking across a carpet. The carpet can become electrically charged due to friction, and when the person touches the doorknob, the charge is transferred to the person, causing a shock.
Static shock can be more than just an annoyance. In some cases, it can be dangerous. For example, static shock can ignite flammable materials, such as gasoline or natural gas. It can also interfere with electronic equipment, such as computers and cell phones.