Question

Three charges of are located at the comes of an equilateral triangle whose sides are 6 cm long. Find the potential at the midpoint of the base of the of the triangle.

Hard

Solution

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Now for solving total potential at mid point we have to calculate value of r for all charges 
We know that for equilateral triangle, 
 
here,
so , Total potential, 

putting value of    we get,
   
           
solving we get
 

solution
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