The electric field at a distance $r$ from the centre in the space between two concentric metallic spherical shells of radii $r_1$ and $r_2$ carrying charge $Q_1$ and $Q_2$ is $(r_1 < r < r_2)$

  • [AIIMS 2009]
  • A

    $\frac{{{Q_1} + {Q_2}}}{{4\pi { \in _0}{{({r_1} + {r_2})}^2}}}$

  • B

    $\frac{{{Q_1} + {Q_2}}}{{4\pi { \in _0}{r^2}}}$

  • C

    $\frac{{{Q_1}}}{{4\pi { \in _0}{r^2}}}$

  • D

    $\frac{{{Q_2}}}{{4\pi { \in _0}{r^2}}}$

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