Engineering Board Exam Reviewer · Physics · medium
A battery with an emf of 12 V and an internal resistance of 0.5 delivers a current of 2 A. What is its terminal voltage?
- 11 V
- 13 V
- 12 V
- 10 V
Answer
A. 11 V
Solution
V = - Ir = 12 - 2(0.5) = 11 V.
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