Which of the following statements about electric field lines is not true? Question 4 options: The number of lines leaving a positive charge or entering a negative charge is proportional to the charge. The lines begin on positive charges and end on negative charges. The density of the lines (the number per unit area perpendicular to the lines) is proportional to the magnitude of the field at that point. Electric field lines cross midway between charges that have equal magnitude and sign. The direction of each line indicates the direction that a positively charged particle would move if placed at that point in the electric field.