Question

Why a copper wire in an closed circuit does not get hot ,but a nichrome wire becomes red and give out heat

Answer 1

HERE IS YOUR ANSWER. . . .

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This is because copper wire offers no resistance and thus electric current passes through them without producing heat energy whereas in nichrome offers a large resistance and thus the mechanical energy of the drifting electrons changes to heat energy rapidly.

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HOPE IT HELPS YOU!

Answer 2

In the closed circuit, the copper wire does not get any heat, at the same time the nichrome wire get heat and becomes red.

The main reason for this is copper wire does not resist anything, so that the electric current easily passes through them without causing any heat.

But nichrome creates the resistance, so it gets heat.