- #1

qwerty92

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## Homework Statement

Hi! My lecturer has given a HW qustion which is as follows:

Can you find a set of charges that are stable? ( total electrical force will be zero)

note: neutral charge is forbidden

## Homework Equations

F=k..q1.q2/d^2

## The Attempt at a Solution

I drew some shapes for neutral electrical force but cannot prove as mathamatical equation

. Shape can be drawn as a square whose one corner is near to the center with respect to other corners, which becomes not a ordnary square by the way