EAMCET Engineering 2007 Solved Paper

Section: Physics
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Question : 29 of 160
 
Marks: +1, -0
Along the x-axis, three charges ‌
q
2
,−q
and ‌
q
2
are placed at x=0,x=a and x=2a respectively. The resultant electric potential at a point P located at a distance r from the charge −q(a<r) is (ε0. is the permittivity of free space)
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