What is the purpose of using a fuse in an electrical circuit?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Function of a Fuse:**
- A fuse is a safety device used in electrical circuits. Its primary function is to protect the circuit and connected appliances from excessive current.

2. **Excess Current Flow:**
- In certain situations, such as a short circuit or an overload, the current flowing through the circuit can exceed the safe limit. This excessive current can cause damage to the electrical appliances and pose a fire hazard.

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