Potential Difference!!?

Question

we say charges flow frm high potential to low potential

wat do we mean by this?

does it mean this: high potential means-conccentration of charges is high and vice versa for low potential?

if in a circuit, we have at two points ,charges of (+) & (-) and (+) more than (-), then wat is the direction of potential difference? wat is the direction of electrons?

Answer 1

we say charges flow from high potential to low potential

what do we mean by this?

A:  Current flows from high potential to low potential.

does it mean this: high potential means - concentration of charges is high and vice versa for low potential?

A: yes.  

if in a circuit, we have at two points ,charges of (+) & (-) and (+) more than (-), then wat is the direction of potential difference?

A: from positive to negative

what is the direction of electrons?

A: from negative to positive

This university website shows the charge relationship nicely:

http://electron9.phys.utk.edu/phys136d/m...

Answer 2

If there is a potential difference then electrons flow from - to + while holes flow from + to -.That is why it is usualy specifyed electron current flow ( in solid state it is called hole flow)