A) Both (i) and (ii) are correct
B) (i) is correct but (ii) is wrong
C) (ii) is correct but (i) is wrong
D) Both (i) and (ii) are wrong
Correct Answer: C
Solution :
Let emf of both cells are \[{{E}_{1}}\]and\[{{E}_{2}}\] and internal resistances are \[{{r}_{1}}\]and \[{{r}_{2}}.\]In parallel order, we have \[E={{E}_{1}}={{E}_{2}}\] Effective internal resistance of both cells \[\frac{1}{R}=\frac{1}{r}+\frac{1}{r}\] \[\Rightarrow \] \[R=\frac{r}{2}\] So, emf is equal to the emf of any of the cell and internal resistance is less than the resistance of any of cell. Hence, (ii) is right and (i) is wrong.
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