1. The direction of Electric field intensity at a point can be calculated by drawing the tangent to the line of force at that point.
2. Due to the attraction between unlike charges, the electric lines of force reduce longitudinally.
3. Due to the repulsion between the like charges, the line of force applies a lateral pressure.
4. Electric lines of forces never intersect each other. This point can be cleared easily through a figure.
Let us suppose that two lines intersect at a point. So draw tangents to that point along the lines of force. You will see that their will be two directions of the electric field intensity at a single point, which is not possible.
5. All the components of electric field intensity are perpendicular to the outermost layer of the conductor.
why the electric lines of force do not pass through good conductor and they pass through bad conductor?
It is because of the presence of more free electrons inside a gud conductorand less no.of free electrons in a bad conductor.
Two electric lines of forces not crosses with each other ,because at the point of intersection there will be two tangent at a single point,which gives two different direction of electric field intensity. which is not possible practically .
As applied field and induced electric field inside the conductor are equal and opposite that’s why net field becomes zero inside a conductor.