To find the equivalent electromotive force (emf) of the two cells connected in parallel, we use the formula for the equivalent emf, Eeq , which is given by: Eeq=
E1
r1
+
E2
r2
1
r1
+
1
r2
=
E1r2+E2r1
r1+r2
This result represents the combined effect of the two cells' emfs and their internal resistances. The equivalent emf Eeq will lie between E1 and E2. Given that E2>E1 and r2>r1, the equivalent emf Eeq will be closer to E2 rather than E1 because the cell with the larger emf and larger internal resistance will have a more significant influence on the total emf value. Therefore, it can be concluded that E1<Eeq <E2, and Eeq is nearer to E2.