The ammeter has been adjusted so that it reaches full-scale deflection when the current measured is $2.0\,\text{A}$. The diagram shows the reading on this ammeter while it is measuring a current. What current is the ammeter measuring?
- A$0.75\,\text{A}$
- B$1.5\,\text{A}$
- C$3.8\,\text{A}$
- D$7.5\,\text{A}$