i. An electric line of force is an imaginary curve drawn in such a way that the tangent at any given point on this curve gives the direction of the electric field at that point.
ii. If a test charge is placed in an electric field it would be acted upon by a force at every point in the field and will move along a path.
iii. The path along which the unit positive charge moves is called a line of force

iv. A line of force is defined as a curve such that the tangent at any point to this curve gives the direction of the electric field at that point.
v. The density of field lines indicates the strength of electric fields at the given point in space.
