Khan Academy Static

In these videos and articles you'll learn what an electric field is and how to calculate the value of the electric field for a point charge and an infinite sheet.

10128_Proof_Field_from_infinite_plate_part_1_.html

10123_Electric_field_direction.html

10127_Electric_field.html

10129_Proof_Field_from_infinite_plate_part_2_.html

10125_Net_electric_field_from_multiple_charges_in_1D.html

10126_Net_electric_field_from_multiple_charges_in_2D.html

10122_Electric_field_definition.html

10124_Magnitude_of_electric_field_created_by_a_charge.html