What is the purpose of the plastic coating on the wire?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Wire**: The wire in question is an electrical wire, which is designed to conduct electricity.

2. **Identifying the Coating Material**: The coating on the wire is made of plastic, which is known to be an insulator. This means that plastic does not conduct electricity.

3. **Purpose of the Plastic Coating**: The primary purpose of the plastic coating is to insulate the electrical wire. This insulation serves several important functions:
- **Prevention of Electric Shock**: The plastic coating protects individuals from electric shock. If someone were to touch the bare wire, they could receive a severe shock or injury. The plastic coating reduces this risk significantly.
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