Question

why thick wire offers less resistence to current comparibly to a thin wire thay offers more resistence? I need a detailed answer for this.

Answer 1

Hi friend,
As we know resistance is depend upon the length and area of cross section
i.e. R= ρl/A
as think wires have a more area of cross section than thin wires so resistance will be less in thick wires because R is inversely proportional to the area of cross section of an object so thin wires possess more resistance
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Answer 2

we know that the resistance depends upon even the cross section of a wire.
look at the formula:
R = PL/A

we can conclude that  resistance is inversely proportional to cross section thats why  resistance decrease  when cross section increases.
Thus, in a wire as the conductor cross section area increases  then the resistance reduces.

also,
consider this,
a larger or thicker wire will  naturally have a large space and the atoms have less intermolecular forces between them.this will allow current to pass easily  giving  less resistance power .but it is opposite in a thin wire.

hope it helps!!!!