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A battery of e.m.f 10V an internal resistance 2Ω is connected to a resistance of...

Physics
WAEC 1994
A battery of e.m.f 10V an internal resistance 2Ω is connected to a resistance of 6Ω. Calculate the p.d
  • A. 8.75V
  • B. 7.50V
  • C. 5V
  • D. 2.50V
  • E. 1.25V
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Correct Answer: Option B
Explanation
V = E - Ir = 10V - \(\frac{10 \times 2}{8}\) = 7.5V
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