## Step 1: Analyze the Electric Field Line Patterns (Question 1) Let's examine each diagram: - **Diagram A:** Field lines are radiating outward from the charge. This matches the pattern for a **positive point charge** (lines go out). - **Diagram B:** Field lines are radiating inward toward the charge. This matches a **negative point charge** (lines go in). - **Diagram C:** Field lines both enter and leave the charge, which is **not possible**—electric field lines should only go out (for positive) or in (for negative), not both. - **Diagram D:** Field lines start and end at infinity, not at the charge, which is **incorrect**. - **Diagram E:** Field lines come in, but do not radiate evenly, and some lines cross each other, which is **not allowed** (field lines never cross). **Explanation:** - Correct field line patterns for a point charge: lines should either all go out (positive) or all go in (negative), and lines should not cross. **Correct Diagrams:** - **Diagram A** (positive charge) - **Diagram B** (negative charge) --- ## Step 2: Draw Electric Field Lines for Charge Configurations (Question 2) ### (a) +q - Draw several lines **radiating outward** from the charge, evenly spaced. - **Explanation:** Field lines for a positive charge move outward; the number of lines should be symmetric. ### (b) -q - Draw several lines **converging inward** to the charge, evenly spaced. - **Explanation:** Field lines for a negative charge move inward; lines point toward the charge. ### (c) +2, -q - Draw more lines (**twice as many**) emanating outward from the +2 charge as are converging inward to the -q charge. - Connect some outward lines from +2 to the -q (showing attraction). - **Explanation:** The field lines should start from +2 and end at -q, with the +2 charge having twice as many lines since its magnitude is double. The remainder of lines from +2 go out to infinity. --- ## **Final Answers:** ### 1. **Correct patterns:** - **Diagram A** and **Diagram B** ### 2. **Field lines:** - (a) Outward lines from +q. - (b) Inward lines to -q. - (c) Twice as many outward lines from +2 as inward to -q; some lines go from +2 to -q. --- **Summary:** Correct electric field patterns are A and B. Draw lines outward from positive charges, inward to negative charges, and proportionally to the magnitude of the charge.