Science, asked by DebaleenaSaha, 3 months ago

why is it that the coil of a heater becomes red hot but not the connecting wires when both are connected to same power supply?

Answers

Answered by ridhima681

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 aluminum is very low so it does not glow.

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