What would be the likely consequence of not having a fuse in an electrical circuit?

Without a fuse in an electrical circuit, the system may short and create a fire hazard due to the potential for excess current flow. Fuses are designed to act as protective devices that interrupt the current when it exceeds a safe level, preventing overheating and potential damage or fire. If there is no fuse to limit the current, a fault in the circuit—such as a short circuit—could lead to uncontrolled current flow. This excessive current can generate heat, igniting insulation or surrounding materials, thereby causing a fire risk. Proper circuit design mandates the use of fuses or circuit breakers to enhance safety and protect both the electrical components and the physical environment.