What is the Direction of the Electric Field?

[aloshi]

what is the electric field? I have read that there is a certain point where the electric field. but what is the electric field?

 

[fluidistic]

Start by reading this : http://en.wikipedia.org/wiki/Electric_field. If you have any questions, feel free to ask.

 

[aloshi]

why must every power line begins at a posetiv charge and end on a negative charge.
http://www.ladda-upp.com/bilder-a/f_C3_A4lt-420.jpg

 

[Born2bwire]

It starts and ends on positive and negative charges by convention. The direction of the electric field is defined as the direction of force that the field applies on a positive test charge. Hence, the field points away from areas of net positive charge and towards areas of net negative charge.