A point charge is surrounded symmetrically by six identical charges at distance $r$ as shown in the figure. How much work is done by the forces of electrostatic repulsion when the point charge $q$ at the centre is removed at infinity

115-747

  • A

    Zero

  • B

    $6{q^2}/4\pi {\varepsilon _0}r$

  • C

    ${q^2}/4\pi {\varepsilon _0}r$

  • D

    $12{q^2}/4\pi {\varepsilon _0}r$

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