When two batteries are connected in parallel, it should be ensured that___________?
Correct answer: A. they have same e.m.f.
- A. they have same e.m.f.
- B. they have same make
- C. they have same ampere-hour capacity
- D. they have identical internal resistance
Explanation
Parallel batteries must have the same e.m.f. so that one battery does not force an excessive circulating current through the other. Matching make, capacity, and internal resistance is desirable but not the essential condition.
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