Question

why wire is cylindrical shape .​

Answer 1

Answer:

That and the fact that current that flows through the wire is depended on the wire cross section area, the circular shape is the maximized area for a given amount of material; therefore, a cylindrical wire is much more efficient.

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Answer 2

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The fact that current that flows through the wire is depended on the wire cross section area, the circular shape is the maximized area for a given amount of material; therefore, a cylindrical wire is much more efficient.

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