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What is the electric potential at a poin...

What is the electric potential at a point P, distance r from the mid-point of ann electric dipole of moment p(=2aq) ?

A

`V=(1)/(4piepsi_(0))(Pcostheta)/(r^(2))`

B

`V=(1)/(4piepsi_(0))(2Pcostheta)/(r^(3))`

C

`(1)/(4piepsi_(0))(2Pcostheta)/(r^(2))`

D

none of these

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The correct Answer is:
A
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