Question

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

Answer 1

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

$\huge\tt\colorbox{pink}{Answer}$

The heater's heating element is made up of an alloy that has very high resistance, so when current flows through the heating element, it becomes too hot and glows red. But the cord's resistance, which is usually of copper or aluminium, is low, so it does not glow.

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Answer 2

Answer:

The heaters heating elements is made up of an alloy having very high resistance, so when current flows through heating element, it becomes too hot and glows red.

But the cord's resistance which is usually of copper or aluminum, is low, so it doesn't glow.

Hope it helps you!