Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal ?

Explanation

### Step-by-Step Solution

1. **Understanding the Purpose of Electric Toasters and Irons**:
- Electric toasters and electric irons are designed to generate heat. Their primary function is to convert electrical energy into thermal energy to toast bread or iron clothes.

2. **Requirement of High Temperature**:
- These devices operate at high temperatures to effectively perform their functions. Therefore, the materials used must withstand these temperatures without melting or degrading.

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