2014 CAIE AS & A level October November Physics Paper 13 Q N 36 (9702/13/O/N/14) by Sajit C Shakya

2014 CAIE AS & A level October November Physics Paper 13 Q N 36 (9702/13/O/N/14) by Sajit C Shakya

2014 Cambridge International AS & A level October November Physics Paper 13 Q. No. 36 (9702/13/O/N/14) by Sajit Chandra Shakya from Nepal Chapter - CURRENT ELECTRICITY An extension lead is used to connect a 240V electrical supply to a heater as shown. A voltmeter measures the potential difference (p.d.) across the heater as 216V and an ammeter measures the current through the heater as 7.7A. What is the total resistance of the extension lead? A 3.1Ω B 6.2Ω C 28Ω D 31Ω