"Membrane potential changes results from very small net charge movements across the membrane"[2], like 10^-4th or 10^-5th[1] of the potassium ions in a cell. B

"Membrane potential changes results from very small net charge movements across the membrane"[2], like 10^-4th or 10^-5th[1] of the potassium ions in a cell. Bionumbers is a fun site: "membrane potential" https://bionumbers.hms.harvard.edu/search.aspx?trm=membrane+potential https://bionumbers.hms.harvard.edu/search.aspx?trm=membrane+... [1] https://bionumbers.hms.harvard.edu/bionumber.aspx?id=106433&ver=0&trm=membrane+potential&org= https://bionumbers.hms.harvard.edu/bionumber.aspx?id=106433&... [2] https://bionumbers.hms.harvard.edu/bionumber.aspx?id=110762&ver=4&trm=membrane+potential&org= https://bionumbers.hms.harvard.edu/bionumber.aspx?id=110762&...