how do skin effect is reduced when hallow cond or stranded cond are used ?

how do skin effect is reduced when hallow cond or stranded
cond are used ?

Question Posted / veena

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how do skin effect is reduced when hallow cond or stranded cond are used ?..

Answer / k.prakashchandra

In hollow conductor the wall (outer surface)becomes thicker
for the same sectional area ,thus offering less
resistance.In case of stranded conductor ,the strands in
alternating positions share equal currents

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