Two similar spheres having $ + \,q$ and $ - \,q$ charge are kept at a certain distance. $F$ force acts between the two. If in the middle of two spheres, another similar sphere having $ + \,q$ charge is kept, then it experience a force in magnitude and direction as

  • A

    Zero having no direction

  • B

    $8F$ towards $ + \,q$ charge

  • C

    $8F$ towards $ - \,q$ charge

  • D

    $4F$ towards $ + \,q$ charge

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