The terminal voltage of a battery is 4 0V when ... - JAMB Physics 1993 Question
The terminal voltage of a battery is 4.0V when supplying a current of 2.0A, and 2.0V when supplying a current of 3.0A. The internal resistance of the battery is
A
0.5 \(\Omega\)
B
1.0\(\Omega\)
C
2.0\(\Omega\)
D
4.0\(\Omega\)
correct option: c
E = 4 + 2r and E = 2 + 3r
therefore, r = 2(\Omega)
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