Question

The teacher replaces the resistance wire with the thicker resistance wire. Explain what effects this would have on the brightness of the bulb when clip is attached at C

Answer 1

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An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. ... The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current.

Answer 2

The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional.

Therefore thicker wire more brighter the bulb..