The circuit contains three ammeters A1, A2 and A3 with readings of A2 and A3 shown as indicated in the diagram. Determine the reading of A1.
- 2A
-
3A
- 5A
- 8A
The correct answer is: B
Explanation
Ammeters are connected in series so,
A3= A2 + A1
A1 = A3 - A1
= 5A - 2A
= 3A