The circuit contains three ammeters A1 A2 and A... - WAEC Physics 2018 Question
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 option: b
For Ammeters that are connected in series:
A3= A2 + A1
A1 = A3 - A1
= 5A - 2A
= 3A
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