Identify the materials which are used in making plugs , sockets etc : copper rubber ,plastic bakelite , aluminium.

Explanation

To identify the materials used in making plugs, sockets, etc., we need to categorize them into conductors and insulators.

### Step-by-Step Solution:

1. **Identify the Purpose of Each Material**:
- Understand that plugs and sockets are electrical components that need to safely conduct electricity while preventing accidental electric shocks.

2. **List the Given Materials**:
...