The electric potential at a point in free space due to charge $Q$ coulomb is  $V=Q$$ \times {10^{11}}\,V$ . The electric field at that point is 

  • [AIPMT 2008]
  • A

    $4\pi {\varepsilon _0}Q \times 10^{20}\;V/m$

  • B

    $\;12\pi {\varepsilon _0}Q \times {10^{22}}\;V/m$

  • C

    $\;4\pi {\varepsilon _0}Q \times {10^{22}}\;V/m$

  • D

    $\;12\pi {\varepsilon _0}Q \times {10^{20}}\;V/m$

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