Movement of an electron between two plates

[asi123]

Homework Statement

Hey guys.
Where is the force which is created by the electric field, directed to? I think it's towered the bottom plate but I'm not sure.

10x.

Homework Equations

The Attempt at a Solution

 

[horatio89]

From the electric field direction, can you determine the relative potential of the two plates, and determine their "sign" (i.e. the plate with the higher potential is positive, and vice versa)?