Potential generated due to movement of freely diffusible ions across a semi-permeable membrane is calculated using:
Nemst equation
Gibbs equation
Goldman-Hodgkin-Katz equation
Fick principle
Ans: A. Nemst equation(Ref Ganong 25/e9, p24/e Guyton 13ze p61).Nernst equation:Calculates potential generated due to movement of freely diffusible ions across a semi-permeable membrane.Describes "relation of diffusion potential to ion concentration difference across a membrane".