Why do we not make use of copper or silver as heating coils?
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Heated copper metal reacts with oxygen to form the black copper oxide. The copper oxide can then react with the hydrogen gas to form the copper metal and water. When the funnel is removed from the hydrogen stream, the copper was still be warm enough to be oxidized by the air again.
Hence it is not used for heating coils
Hence it is not used for heating coils
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Answer:
Copper is not used as heating coil because copper is having low resistance
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