Question

A fuse in domestic wiring is always connected in the

• A. Neutral wire
• B. Earth wire
• C. Live wire
• D. Both neutral and earth wire

Hint:

A fuse must always be connected in the live wire so that the appliance is completely disconnected from supply during a fault.

Answer 1

The Correct Option is C

Concept: A fuse is a protective device used to disconnect the circuit when excessive current flows through it.

Step 1: In domestic wiring, the live wire carries current from the supply to the appliance.

Step 2: If excess current flows due to overload or short circuit, the fuse wire melts.

Step 3: When the fuse melts, it breaks the live connection and disconnects the appliance from the supply.

Step 4: If the fuse is connected in the neutral wire, the appliance may still remain connected to the live wire, which is dangerous. Therefore, fuse is connected in: \[ \boxed{\text{Live wire}} \]