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Why does the cord of an electric oven not glow while its heating element does |
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Answer» The heating effect of an electric oven is made of an alloy ( such as nichrome) which has high resistance whereas the cord is made of copper metal which has very, very low resistance...... 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 due to heating effect of current. But the resistance of cord which is usually of copper or aluminium is very low so it does not glow. |
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