On drawing electric field vectors around an infinitely large positively charged plane sheet, we find that the length of the vectors (which represent the magnitude of the field at that point) on both sides of the sheet decreases with distance, and is directed away from both sides of the sheet. We know that on joining these vectors to get electric field lines, the magnitude of the field at a point is now indicated by the number of electric field lines per unit area passing through the area element at the point perpendicular to the plane of paper on which the lines are drawn. However, we see that the number of electric field lines per unit area passing through the perpendicular plane is the same at a point near the sheet as well as a point far away from the sheet. Clearly, this indicates that the magnitude of the electric field at the points near and far from the sheet is the same. However, this is contrary to the observations stated in the first paragraph. Can anyone explain this, please???