Multiple choice A fuse wire is used in an electric circuit to: minimize loss of electric energy in transmission maintain constant voltage level prevent excessive current from passing through the circuit prevent heating of electric wire Reveal answer Fill a bubble to check yourself C Correct answer Explanation A fuse is a safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level. This prevents damage to the electrical appliances and the wiring from overheating or fire.