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WAEC Physics 2018 Paper
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© africaexams.com
Question : 41
Total: 50
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
Validate
Solution:
Ammeters are connected in series so,
A3= A2 + A1
A1 = A3 - A1
= 5A - 2A
= 3A
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