WAEC - Physics (1988 - No. 37)
A battery of emf 24V and internal resistance 4Ω is connected to a resistor of 32Ω. What is the terminal p.d of the battery?
24.0V
21.3V
16.0V
2.7V
2.0V
Explanation
E = V + Ir
V = E- Ir
V = 24 - {(24/36) x 4}
V = 21.3V
V = E- Ir
V = 24 - {(24/36) x 4}
V = 21.3V