Three identical cells, each of electromotive force (emf) 2.0 V and internal resistance 1.5 Ω, are connected in parallel. An external resistor of resistance 3.5 Ω is connected across this parallel cell combination as shown in the diagram.
What is the current in the 3.5 Ω resistor?
0.25 A0.25\text{ A}0.25 A
0.50 A0.50\text{ A}0.50 A
0.75 A0.75\text{ A}0.75 A
1.50 A1.50\text{ A}1.50 A