Question

Assertion: electric lines of forces are normal to any equipotential surfaces at all points on the surface.
Reason: electric field is strong at points where equipotential surfaces are crowed and vice- versa

Answer 1

Answer:

There is no potential gradient along any direction parallel to the surface, and no electric field is parallel with the surface, This means electric field are always at right angle to the equipotential surface. As we know electric field lines show us the electric field direction.

So the electric field intensity is inversely proportional to the separation between equipotential surfaces. ... As the electric field and potential or field decreases as size of body increases or vice- versa (case of earth), so the equipotential surfaces will be more crowded if the charge density increases.

Hope this answer is helpful for you.