Three identical cells, each of emf 4.2 V and internal resistance 1.5 Ω, are connected in parallel. A load resistor R R\,R of resistance 3.0 Ω is connected across this parallel combination as shown in the diagram.
What is the current in the resistor RRR?
0.56 A0.56\text{ A}0.56 A
1.2 A1.2\text{ A}1.2 A
1.4 A1.4\text{ A}1.4 A
3.6 A3.6\text{ A}3.6 A