When an electric current passes through an incandescent bulb circuit, its filament gets heated up significantly and glows, while the copper wires connecting it to the source do not heat up noticeably. What is the primary reason for this?

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Physics · Current Electricity

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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The connecting wire has a much lower electrical resistance than the filament

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Answer 1

The connecting wire has a higher melting point than the filament

Answer 2

The filament is coated with a fluorescent material, whereas the wire is not

Answer 3

The connecting wire has a much lower electrical resistance than the filament

Answer 4

The connecting wire has a higher electrical resistance than the filament

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