A fuse wire is always connected to the

Options

A. earth wire
B. neutral wire
C. live wire
D. none of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Purpose of a Fuse:**
A fuse is a safety device used in electrical circuits to prevent damage from excessive current. It is designed to melt and break the circuit when the current exceeds a certain limit.

2. **Identifying the Types of Wires:**
In a typical electrical system, there are three types of wires:
- **Live Wire:** Carries current to the appliance.
- **Neutral Wire:** Completes the circuit by carrying current away from the appliance.
- **Earth Wire:** Provides a safe path for electric current to the ground in case of a fault.

3. **Determining the Connection Point for the Fuse:**
The fuse must be connected in series with the live wire. This is because the live wire is the one that carries current to the appliance. If the current exceeds the safe limit, the fuse will melt and break the circuit, thus protecting the appliance.

4. **Reason for Connecting the Fuse to the Live Wire:**
- If the fuse is connected to the neutral or earth wire, it would not effectively protect the appliance.
- The neutral wire carries current away from the appliance, and connecting the fuse there would not interrupt the current flow to the appliance.
- The earth wire is meant for safety and does not carry current under normal conditions.

5. **Conclusion:**
Therefore, the fuse wire is always connected to the live wire to ensure that it can break the circuit in case of excessive current, protecting the electrical devices from damage.

**Final Answer:**
A fuse wire is always connected to the live wire.

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