Which one of the following is the best conductor of electricity ?

Options

A. Aluminium
B. Silver
C. Plastic
D. Paper

Explanation

To determine which one of the following is the best conductor of electricity, we will analyze the given options: aluminum, silver, plastic, and copper.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are aluminum, silver, plastic, and copper.

2. **Understand Conductors and Insulators**:
- Conductors are materials that allow electric current to flow through them easily.
- Insulators are materials that do not allow electric current to flow through them.

3. **Evaluate Each Option**:
- **Plastic**: This is an insulator. It does not conduct electricity.
- **Aluminum**: This is a metal and a good conductor of electricity, but not the best.
- **Silver**: This is also a metal and is known to be the best conductor of electricity among all metals.
- **Copper**: This is another good conductor, but it is not as good as silver.

4. **Compare Conductivity**:
- Between aluminum, silver, and copper, silver has the highest conductivity, meaning it allows electricity to flow through it better than the others.

5. **Conclusion**: Based on the evaluation, the best conductor of electricity among the options provided is silver.

### Final Answer:
The best conductor of electricity is **Silver**.

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