Why do the wires connecting an electric heate | vedclass

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(C) The wires of the connecting cord of an electric heater are typically made of copper $(Cu)$,which has extremely low electrical resistance. Accordin

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The heating element has high resistance,while the connecting wires have negligible resistance.

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(C) The wires of the connecting cord of an electric heater are typically made of copper $(Cu)$,which has extremely low electrical resistance. According to Joule's law of heating,$H = I^2Rt$,the heat produced is directly proportional to the resistance $(R)$. Since the resistance of copper wires is negligible,very little heat is produced,and they do not glow.Conversely,the heating element is made of an alloy like nichrome,which has a very high electrical resistance. Due to this high resistance,a large amount of heat is generated when current flows through it,causing it to glow red-hot.

Why do the wires connecting an electric heater to the mains not glow while its heating element does?

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