In an electric blub the same amount of electric current flowing through, the filament of tungsten produces enormous heat but neglible heat is produced in the connecting copper wire
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In an electric bulb the same amount of electric current flows throuh a tungsten wire it produces much heat than the electric current flows from a copper wire, because a tungsten wire has a high resistance and a high melting point so when electric current flows through tungsten wire it produces enormous heat and light energy that a copper wire can't.
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