Questions about Electrostatic Fields

[penguin007]

I have two questions:

Why is it that the field lines of the electrostatic field do stray one from the other one when abs(E) decreases?

Second question:

Why is abs(E) bigger in the areas where the equipotentials are squeezed up?


Thank you!

 

[rl.bhat]

1) Electric field is flux per unit area. Flux is field lines. If E decreases, field lines per unit area decreases.
2) If E increases, the potential difference between two points increases.
If ΔV is the change in PD between two points separated by a distance Δx, then what is the relation between E, ΔV and Δx?

 

[penguin007]

Thank you for the explanation rl.bhat, I think I got the idea.