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Why does the cord of an electric heater ...

Why does the cord of an electric heater not glow while the heating element does ?

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Cord is made up of copper wire whereas heating element is made up of alloy. The cord of an electric oven is usually made of copper or aluminium whose resistance is very low so it does not glow. Whereas, its heating element is made up of alloy which has very high resistance. So, when current is passed through the heating element it becomes very hot and glows red.
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