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.
-
A.
2A -
B.
3A -
C.
5A -
D.
8A
Correct Answer: Option B
Explanation
Ammeters are connected in series so,
A3= A2 + A1
A1 = A3 – A1
= 5A – 2A
= 3A