Niba ushaka gucangiza phone 2 zose za 4000mAh = 14.8Wh x 2 = 29.6Wh Mu masaha 4 y'izuba gusa... Ukeneye S20 zingae? Hint: Imbaraga = Wh ÷ Amasaha = 29.6 ÷ 4 = ?

Dukoresheje formula yatanzwe: Imbaraga = Wh $\div$ Amasaha.

$$\text{Imbaraga zikenewe} = \frac{29.6 \text{ Wh}}{4 \text{ h}}$$ $$\text{Imbaraga zikenewe} = 7.4 \text{ W}$$

Imbaraga za S20 imwe ni $1.5 \text{ W}$.

$$\text{Umubare wa S20} = \frac{\text{Imbaraga zikenewe}}{\text{Imbaraga za S20 imwe}}$$ $$\text{Umubare wa S20} = \frac{7.4 \text{ W}}{1.5 \text{ W}}$$ $$\text{Umubare wa S20} \approx 4.93$$

Kubera ko udashobora kugira igice cya S20, ukeneye umubare wuzuye wa S20 kugira ngo ubashe gucaginga telefone.

$$\text{Umubare wa S20} = \boxed{\text{5 S20}}$$