Fuse is a simple device for protecting electric circuits fron overloads and short -circuits . A Fuse consists of one or several fuse links , an insulating body and terminals for connecting the fuse to an electric circuit . Fuses are connected in an electric circuit and break the circuit when the fuse links melt.
A material best suited for the manufacturong of the fuse is

Options

A. brass
B. copper
C. aluminium
D. gold

Explanation

To determine the best material for manufacturing a fuse, we need to consider two important properties: the melting point and conductivity of the materials in question. A fuse must melt easily to break the circuit during overloads or short circuits, and it should also conduct electricity well when functioning normally.

### Step-by-Step Solution:

1. **Understanding the Purpose of a Fuse**:
- A fuse is designed to protect electrical circuits from overloads and short circuits by melting and breaking the circuit when excessive current flows through.

2. **Identifying the Required Properties**:
- The material used for a fuse should have a **low melting point** so that it can melt quickly during an overload.
- The material should also have **high electrical conductivity** to allow normal current to pass through without significant resistance.

3. **Evaluating the Given Materials**:
- The materials provided are: **Brass, Copper, Aluminium, and Gold**.
- We need to analyze each material based on their melting points and conductivity.

4. **Comparing Melting Points**:
- **Brass**: Has a relatively high melting point.
- **Copper**: Has a low melting point (approximately 1,085°C).
- **Aluminium**: Has a low melting point (approximately 660°C).
- **Gold**: Has a high melting point (approximately 1,064°C).

5. **Comparing Conductivity**:
- **Brass**: Moderate conductivity.
- **Copper**: Excellent conductivity, one of the best conductors of electricity.
- **Aluminium**: Good conductivity, but not as high as copper.
- **Gold**: Excellent conductivity, but more expensive and not as practical for fuses.

6. **Selecting the Best Material**:
- Among the materials, **Copper** stands out as it has a low melting point and high conductivity, making it the best choice for manufacturing fuses.

### Conclusion:
The best material suited for the manufacturing of a fuse is **Copper**.

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