Which material is used to make lightning conductors?

Options

A. Wood
B. Glass
C. Copper
D. Plastic

Answer

**Step-by-Step Solution:**

1. **Understanding Lightning Conductors**: Lightning conductors are devices used to protect buildings and structures from lightning strikes. They provide a safe path for the electrical charge from lightning to reach the ground.

2. **Property of Lightning Conductors**: The primary requirement for a material to be used as a lightning conductor is that it must be a good conductor of electricity. This means that the material should allow electric charges to flow through it easily.

3. **Identifying Good Conductors**: Good conductors of electricity typically have free electrons that can move easily. Metals are generally good conductors because they have a high number of free electrons.

4. **Evaluating Materials**:
- Wood: Insulator, does not conduct electricity well.
- Glass: Insulator, does not conduct electricity well.
- Plastic: Insulator, does not conduct electricity well.
- Copper: Metal, has free electrons and is a good conductor.

5. **Conclusion**: Among the materials considered, copper is the best choice for making lightning conductors due to its excellent conductivity.

**Final Answer**: Copper is used to make lightning conductors.

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