Why does a metal-filament bulb glow when electric current passes through it?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) The filament conducts current with zero resistance
2. (B) The filament gets magnetised by the current
3. (C) The filament offers resistance, converting electrical energy into heat and light
4. (D) Light is produced from a chemical reaction in the filament

Verified Answer

Option (C): The filament offers resistance, converting electrical energy into heat and light

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