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A square having equal charge 'Q'. Find the net charge at corner.

A square having equal charge 'Q'. Find the  net charge at corner. 

Grade:12

1 Answers

Vikas TU
14149 Points
5 years ago
At corner the net chrge would be repulsive.
Fnet = F1 + F2 + F3
       = KQ^2/a^2  + KQ^2/a^2  + KQ^2/(root2*a)^2
       = 2KQ^2/a^2 + KQ^2/2a^2
       = (5KQ^2)/2a^2
where a is the length of the square.

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