EAMCET Engineering 2007 Solved Paper
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Question : 29 of 160
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+1,
-0
Along the x -axis, three charges
, − q and
are placed at x = 0 , x = a and x = 2 a respectively. The resultant electric potential at a point P located at a distance r from the charge − q ( a < r ) is ( ε 0. is the permittivity of free space)
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