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