Question

Why are multiple fuses used in domestic electric circuit

• A. Failure of one of the fuses allow system to continue working in applications where fault has not ocured
• B. It increases efficiency of system
• C. It guarantees system will always work perfectly
• D. All of the above

Answer 1

Answer: (D)

All of the above

A fuse in a circuit prevents damage to the appliances and the circuit due to overloading. Overloading can occur when the live wire and the neutral wire come into direct contact. (This occurs when the insulation of wires is damaged or there is a fault in the appliance.) It is desirable that fault in one part of the system does not affect the entire operation of the power supply. Hence, multiple fuses are used so that failure in some appliances does not affect the performance of other parts of the circuit.