Will current can flow more easily through a thick wire or a thin … - Vidyadip

Question

Will current can flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?

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Answer

The current will flow more easily through a thick wire than through a thin wire of the same material and having the same length when connected to the same source.
$\rightarrow$ Because, the resistance of a wire is inversly proportional to its area of cross-section. A thick wire has more area of cross-section and hence less resistance compared to a thin wire provided the two wires have the same length.
$\rightarrow$ Hence, a current can flow more easily through a thick wire compared to a thin wire when connected to the same source.

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