Two non-ideal unidentical batteries are connected in parallel with positive terminals. Consider the following statements:

A. The equivalent emf is smaller than either of the two emfs.
B. The equivalent internal resistance is smaller than either of the two internal resistances.

B is correct but A is wrong

$E_{e q}=\frac{E_1 / r_1+E_2 / r_2}{1 / r_1+1 / r_2}=\frac{E_1 r_2+E_2 r_1}{r_1+r_2}=E_1\left[\frac{r_2+r_1\left(E_2 / E_1\right)}{r_1+r_2}\right]$

Therefore, E_eq can be greater than, less than or equal to E₁ depending upon the condition whether

E₂ > E₁, E₂ = E₁ or E₂ < E₁