16.2 Electric Field

What?
It is a field or space around a charge particle where its force can be experienced by any other charge particle. Electric field is also known as electrostatic field intensity. If a charge is positive charge, then the lines of force come out of this charge. Again for a negative charge, these lines of force come into this charge.

What is the Direction of Electric Field?

Electrostatic force and electrostatic field both are vector quantity. As electric field is the force per unit test charge, so the direction of electrostatic field must follow the direction of electrostatic force. Again the direction of the electric field intensity is given by the direction of motion of the test charge.