Consider two identical cells each of emf E and internal resistance r connected to a load resistance R.

	Column I		Column II
i)	Maximum power transferred to load if cells are connected in series	p)	$\frac{E^2}{4r}$
ii)	Maximum power transferred to load if cells are connected in parallel	q)	$\frac{E^2}{2r}$
iii)	For series combination of cells	r)	$E_{eq}=E,r_{eq}=\frac{r}{2}$
iv)	For parallel connection of cells	s)	$E_{eq}=2E,r_{eq}=2r$

Now, match the given columns and select the correct option from the codes given below.