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Why Does the Cord of an Electric Heater Not Glow While the Heating Element Does? - Science

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

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Solution

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

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APPEARS IN

NCERT Class 10 Science Textbook
Chapter 12 Electricity
Q 1 | Page 218
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