Cambridge IGCSE. 2025. Physics (0625). May/June - Paper 2 (22) · Multiple Choice (Extended) - Question 29

Question 29

The diagram shows the circuit for a potential divider.



Which equation is used to calculate $V_1$?

1. $V_1 = \dfrac{R_1}{V_2 \times (R_1 + R_2)}$
2. $V_1 = \dfrac{V_2 \times R_1}{R_2}$
3. $V_1 = \dfrac{V_2 \times R_1}{R_1 + R_2}$
4. $V_1 = \dfrac{R_1}{V_2 \times R_2}$