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The circuit contains three ammeters A1, A2 and A3 with readings of A2 and A3...

Physics
WAEC 2018

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
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Correct Answer: Option B
Explanation

Ammeters are connected in series so,

A3= A2 + A1

A1 = A3 - A1

= 5A - 2A

= 3A


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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995