The length of the potentiometer wire is l. A cell of emf E is balanced at length $ \large\frac{l}{3}$ from the positive end of the wire. If the length of the wire is increased by $ \large\frac{l}{2}$, at what distance will the same cell give a balance point

Question

$\begin {array} {1 1} (A)\;\large\frac{l}{3} & \quad (B)\;\large\frac{l}{2} \\ (C)\;\large\frac{2l}{3} & \quad (D)\;\large\frac{3l}{4} \end {array}$