arc discharge

Arc discharge is a physical phenomenon where electricity flows through the air between two electrodes, creating a visible, glowing path. This occurs when the electric field becomes strong enough to ionize the air, allowing current to pass. The result is a bright, sometimes noisy arc of light, often seen in devices like arc welders or lightning. Arc discharges generate intense heat and can produce various colors depending on the materials involved. They are used in industries for cutting and welding metals, and they illustrate the power of electricity in overcoming resistance in the air.