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What is the resistance of the circuit shown above

Physics
JAMB 1984

What is the resistance of the circuit shown above

  • A. 4Ω
  • B. 11Ω
  • C. 19/5Ω
  • D. 17/4Ω
  • E. 8Ω
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Correct Answer: Option E
Explanation

from the diagram, 2ohms and 2ohms are parallel, then total resistance = 1ohms

1ohms, 3ohms and the 4ohms are in series

then total resistance = 1 + 3 + 4 = 8ohms.


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