Question Detail
Question
battery of emf 4v and internal resistance of 2 Ohms is joined to a resistor of 8 Ohms. Calculate the terminal p.d
Correct Answer
Option A is the correct answer.
Detailed Explanation
Current I = E/(R+r) = 4/(8+2) = 0.4 A. Terminal V = E - Ir = 4 - (0.4×2) = 4 - 0.8 = 3.2 V.
Hint
V = E - Ir.