A plasma arc is a type of electrical discharge that occurs when a gas is ionized, creating a conductive path for electricity. This process generates extremely high temperatures, often exceeding 10,000 degrees Fahrenheit. Plasma arcs are commonly used in various applications, including welding, cutting metals, and in some types of lighting. In welding, plasma arcs provide a focused heat source that allows for precise and efficient joining of materials. The technology is also utilized in industrial processes, such as waste treatment and material processing, due to its ability to melt and vaporize substances quickly.