Chave Do Yahoo Musicmatch

elemental electric field vector through a surface

present the concept of flow as the number of field lines passing through a surface. This issue depends on:

1. 
   
field strength value of the surface
2. 
   
3. surface orientation with respect to the vector field. In this animation you can change the angle between the surface vector and the vector field.
   

The concept can be extrapolated to the flow of a magnetic field which would cause an electromotive force and induced current in an external circuit.