Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.076 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside?
We have given the potential difference
= 0.076 V.
Work done by in moving a charge Q in potential difference of
,
W= Q.
So the work done in movement of sodium ion having charge equal to +e
W=
.
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