PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
Two batteries with e.m.f. 12 V and 13 V are connected in parallel across a load resistor of 10Ω . The internal resistances of the two batteries are 1Ω and 2Ω respectively. The voltage across the load lies between:
(1) 11.6 V and 11.7 V
(2) 11.5 V and 11.6 V
(3) 11.4 V and 11.5 V
(4) 11.7 V and 11.8 V