Current defined as Positive charge flow , flows from higher potential to the lower.

Current defined as electron flow, flows from lower potential to higher.

In general Potential and Current are defined by positive charge.

The electricity will flow from higher potential to lower potential in a closed circuit.

the electrons flow from the region of low potential to region of high potential. the electric current also flow in this direction but for convention we took it as the flow of positive charge from region of low to high region potential.

It flows from higher potential to lower potential. simply opposite to direction of electrons flow...

The Nernst potential refers to the reversal potential of the membrane potential at which there is no net flow of a particular number of ion from one side of the membrane to another.