Two metal spheres $A$ and $B$ of radii $a$ and $b(a < b)$ respectively are at a large distance apart. Each sphere carries a charge of $100 \mu C$. The spheres are connected by a conducting wire, then

  • A

    Charge will flow from $A$ to $B$

  • B

    Charge will flow from $B$ to $A$

  • C

    No charge flows in the wire

  • D

    All charges will reside on the connecting wire

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