2017 CAIE AS & A level May June Physics Paper 13 Q. No. 36 (9702/13/M/J/17) by Sajit C Shakya

2017 Cambridge International AS & A level May June Physics Paper 13 Q. No. 36 (9702/13/M/J/17) by Sajit Chandra Shakya from Nepal Chapter - CURRENT ELECTRICITY A potential divider circuit consists of a cell of negligible internal resistance in series with two variable resistors of resistances R1 and R2. The potential difference (p.d.) across the cell is V0. The p.d. at the output is V. Which statement is correct? A When R1 increases, it takes a greater proportion of V0, so V decreases. B When R1 increases, the current through R1 and R2 decreases, so V increases. C When R2 decreases, it takes a smaller proportion of V0, so V increases. D When R2 increases, the current through R1 and R2 decreases, so V decreases.