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
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(a)
$V_A=\frac{k(100)}{a} \quad V_B=\frac{k(100)}{b}$
$a < b$
$V_a > V_B$
Charge flows from $A$ to $B$.
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