Electrostatic Potential and Capacitance


   
 
Numerical 05
05. Calculate the potential at the centre O of the square shown in the figure.
 
 
Suggested answer:
 
Let us first calculate the distance (OB = OC = OA = OD) of each charge from O.
 
 
 
 
Potential at O due to charges at A, B, C and D is given by
 
 
 
 
 
     
   
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