(b) Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.070 V. Calculate how much work is done by the electric force when a sodium ion (charge = te) moves from the outside to the inside. Gestetdie elektriesepotensiaat buite'mewendesefis met 'n woarde van 0.070 V groter as binne die sel. Bereken hoeveel arbeid verrig word deur die elektriese krag wanneer 'n natriumioon (lading = +e) van buite die sel na binne die sel beweg. (..../3)