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3. current electricity — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics3. current electricity1 Mark
MCQ
Two non-ideal identical batteries are connected in parallel. Consider the following statements

$(i)$ The equivalent e.m.f. is smaller than either of the two $e.m.f.$ is

$(ii)$ The equivalent internal resistance is smaller than either of the two internal resistances

  • A
    Both $(i)$ and $(ii)$ are correct
  • B
    $(i)$ is correct but $(ii)$ is wrong
  • ✓
    $(ii)$ is correct but $(i)$ is wrong
  • D
    Both $(i)$ and $(ii)$ are wrong
✓

Answer

Correct option: C.
$(ii)$ is correct but $(i)$ is wrong
c
(c) Because ${E_{eq}} = E$ and ${r_{eq}} = \frac{r}{2}$

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