The filament of an electric bulb is made of a thin wire of :

Options

A. copper
B. aluminium
C. nichrome
D. tungsten

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: We need to identify the material used for the filament of an electric bulb.

2. **Identifying the Filament**: The filament is the part of the bulb that glows when electric current passes through it. It is typically a thin wire.

3. **Material Selection**: The most common material used for the filament in electric bulbs is Tungsten. This is because Tungsten has specific properties that make it suitable for this application.

4. **Reason for Using Tungsten**: Tungsten has a very high melting point, approximately 1500 degrees Fahrenheit (or about 815 degrees Celsius). This high melting point allows the filament to withstand the heat generated when electric current flows through it without melting.

5. **Conclusion**: Therefore, the filament of an electric bulb is made of Tungsten.

**Final Answer**: The filament of an electric bulb is made of Tungsten.

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