An electrical arc is not the electricity itself but rather the result of electricity ionizing gases in the air, which then radiate electromagnetic energy. The visible blue, white, or purple colors of the arc are due to these ionized gases emitting photons. Electricity facilitates the phenomenon of sight but is not visible on its own. The discussion emphasizes understanding the interaction between electricity and air rather than viewing the arc as electricity itself. Overall, the arc is a visual representation of electrical energy interacting with its environment.
