2017 CAIE AS & A level October November Physics Paper 13 Q N 36 (9702/13/O/N/17) by Sajit C Shakya
2017 CAIE AS & A level October November Physics Paper 13 Q. No. 36 (9702/13/O/N/17) by Sajit Chandra Shakya from Nepal Chapter - CURRENT ELECTRICITY Two cells, each with electromotive force (e.m.f.) E, but different internal resistances r1 and r2, are connected in series to a resistor R. The reading on the voltmeter is 0 V. What is the resistance of R?