A potential divider circuit is made up of a cell with negligible internal resistance connected in series with two variable resistors of resistances $R_1$ and $R_2$. The potential difference (p.d.) across the cell is $V_0$. The output p.d. is $V$. Which statement is correct?
- AWhen $R_1$ increases, it takes a greater proportion of $V_0$, so $V$ decreases.
- BWhen $R_1$ increases, the current through $R_1$ and $R_2$ decreases, so $V$ increases.
- CWhen $R_2$ decreases, it takes a smaller proportion of $V_0$, so $V$ increases.
- DWhen $R_2$ increases, the current through $R_1$ and $R_2$ decreases, so $V$ decreases.