A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor of resistance 2Ω. Find the current flow.
A
5 A
B
4 A
C
3 A
D
2 A
Verified Correct Answer: D.
Physical Principles & Numerical Solution
I = E/(R+r)
= 12/6 = 2A
Source: WAEC / JAMB / NECO Classroom Archive (Record #14512)