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The electrostatic potential due to the c...

The electrostatic potential due to the charge configuration at point P as shown in figure for bltlta is

A

`(2q)/(4pi epsilon_(0)a)`

B

`(2qb^(2))/(4pi epsilon_(0)a^(3))`

C

`(qb^(2))/(4pi epsilon_(0)a^(3))`

D

zero

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