Question

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

• A. $\frac{2l}{3}$
• B. $\frac{l}{2}$
• C. $\frac{l}{6}$
• D. $\frac{4l}{3}$

Answer 1

The correct option is B $\frac{l}{2}$