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\(\Omega\)
Verified Correct Answer: C.
Physical Principles & Numerical Solution
E = 4 + 2r and E = 2 + 3r
therefore, r = 2\(\Omega\)
Source: Myschool Past Questions Archive (Record #28013)