Direction: Essay. Answer the question briefly with at least 3 sentences.

2. In the diagram shown below, the circles represent small balls that have electric charges. Ball 1 has a negative charge, and ball 2 is repelled by ball 1. Next, you see that ball 2 repels ball 3 and that ball 3 attracts hall 4. What is the electric charge on ball 4? explain 1. Can you explain the attraction of water to the charged rod in the figure below