Question

In which of the following wires of domestic electric distribution is the fuse wire connected in series?

• A. Earth-connected wire
• B. Neutral wire
• C. Live wire
• D. None of these

Hint:

Always connect the fuse in the live wire, not in the neutral wire. This ensures that the circuit is completely disconnected from the supply when the fuse blows.

Answer 1

The Correct Option is C

Step 1: Understanding fuse connection.
A fuse is a safety device that protects electrical circuits from excessive current. It is always connected in series with the circuit to ensure that when excessive current flows, the fuse melts and breaks the circuit.
Step 2: Reason for connecting with live wire.
The live wire carries the current from the supply to the appliance. If the fuse were placed in the neutral wire instead, the appliance could remain connected to high potential even after the fuse blows — posing an electric shock risk.
Step 3: Conclusion.
Hence, the fuse wire is always connected in series with the live wire.