Two resistors, having resistances $R_1$ and $R_2$, are connected as a potential divider. What is the relationship among $R_1$, $R_2$ and the potential differences $V_1$ and $V_2$?
- A$R_1 \times R_2 = V_1 \times V_2$
- B$R_1 \times V_1 = R_2 \times V_2$
- C$\frac{R_1}{R_2} = V_1 \times V_2$
- D$\frac{R_1}{R_2} = \frac{V_1}{V_2}$