Question

Why does a conducting wire offer resistance to the flow of electrons?

Answer 1

The conducting wire consists of free electrons .the flow of electrons coming from the current source have to travel through that conducting wire consisting of free electrons .the incoming electrons sometimes collide or hit the free electrons present inside the conducting wire .these collisions slows down the speed of flow of current and obstructs its path. This is how resistance occurs

Answer 2

Hey dude,

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.

@AzzyLand