Magnetism and Electromagnetism
Out of the following statements, concerning an electric field, which statement is not true?

An electric field is defined as a point in space at which an electric charge would experience a force
The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point
The electric intensity is a vector quantity
Unit field intensity in the exertion of a force of one newton on a charge of one coulomb