1. The problem asks to draw electric field lines for various charge configurations and place arrows on them. 2. Electric field lines start on positive charges and end on negative charges. 3. The density of lines indicates the field strength; more lines mean stronger fields. 4. Lines never cross and must be perpendicular to the surface of the charge. 5. For the first configuration (negative, positive, negative in a line), field lines start at the positive charge and end at the negative charges, showing attraction. 6. For the second configuration (positive, negative, positive), lines start at the two positive charges and end at the negative charge in the center. 7. For the third configuration (three positive charges in an L shape), lines repel outward from each positive charge, curving away from each other. 8. For the fourth configuration (two rows: positive on top, negative on bottom), lines go straight from each positive charge to the negative charge below it, showing uniform field lines. 9. For the fifth configuration (four positive charges in a square), lines repel outward from each charge, curving away from each other. 10. For the sixth configuration (multiple positive charges in a circle), lines radiate outward from each charge, spreading evenly around the circle. Since the user requested drawings, which cannot be provided in text, this explanation covers the principles and expected patterns for the electric field lines with arrows.