Which factors can influence the temperature of an electrical arc?

The selected answer highlights critical factors that determine the temperature of an electrical arc. Current is a primary factor because it directly influences the power output of the arc; higher current levels can increase the arc's temperature significantly. Voltage drop is also crucial, as it represents the difference in voltage across the electrical circuit and contributes to the potential energy available to form the arc. Lastly, the type of metal involved in the arcing process can affect thermal conductivity and the ionization characteristics of the arc. Different metals have varying tendencies to form plasmas and conduct electricity, impacting the arc's temperature.

These three factors work together to define the energy and temperature of the electrical arc, making this answer comprehensive and accurate in addressing the influences on arc temperature.