In a regular polygon of n sides each corner is at a distance r from the centre . identical charges are placed at (n-1) corners . find the ratio of V/E ?

Question

Answer

Where we have to calculate E/V ratio?
At what position?
if it is at the center then E=kq/r² (vector addition) and V=nKq/r (scalar addition)
therefore E/V =1/nr

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