6.2 - Electric Fields

Question 1

What is an electric field?

Answer 1

Region around a body where other charged bodies feel a force due to electric charge of the body

Question 2

What do electric field lines show?

Answer 2

Shape of the field

Direction of a positive charge

Question 3

What is electric field strength?

Answer 3

Force per unit of positive charge

Question 4

What is coulombs law?

Answer 4

Force between two point charges is directly proportional to the product of charges. It is also inversely proportional to the square of their separation

Question 5

What is permittivity?

Answer 5

A constant which is related to the size of the capacitance. C = Aɛ / d

Question 6

What is Electric potential?

Answer 6

Work done per unit of positive charge to move the charge from infinity to a point within the electric field