Figure shows three concentric metallic spherical shells. The outermost shell has charge $q_2$, the inner most shell has charge $q_1$, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is

213523-q

  • A

    $q_1+q_2$

  • B

    $\frac{q_2}{2}$

  • C

    $-q_1$

  • D

    $0$

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