Two equal charges are separated by a distance $d$. A third charge placed on a perpendicular bisector at $x$ distance will experience maximum coulomb force when

  • A

    $x = \frac{d}{{\sqrt 2 }}$

  • B

    $x = \frac{d}{2}$

  • C

    $x = \frac{d}{{2\sqrt 2 }}$

  • D

    $x = \frac{d}{{2\sqrt 3 }}$

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