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A uniform wire of resistance R is shaped...

A uniform wire of resistance `R` is shaped into a regular `n-`sided polygon (`n` is even), The equivalent resistance between any two corners can have.
(i) the maximum value `(R )/(4)`
(ii) the minimum value `( R)/(n)`
(iii) the minimum value `R((n -1)/(n^2))`
(iv) the minimum value `(R )/(n)`.

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