A cell of e m f 12V and internal resistance 4 i... - JAMB Physics 2010 Question
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
correct option: d
I = E/(R+r)
= 12/6 = 2A
= 12/6 = 2A
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