Physics Question 107 – AP-EAMCET 2025

Two cells of each emf $1.5\text{ V}$ and internal resistance $1\mathrm{\Omega }$ are first connected in series to an external resistance, R and then the cells are connected in parallel to the same external resistance, R. If the ratio of the potential differences across the resistor R in the two cases is $4:3$, then the value of R is