. A rubber ball is positively charged. It is brought near a conducting metal bar. They are arranged as shown below which results in insulator A polarizing conductor B. Rubber Ball Rubber Ball Metal Bar Metal Bar Insulator Insulator Conductor Conductor (a) The negative electrons in the metal bar are free to move, either towards the positive rubber ball or away from the positive rubber ball. Which way do the electrons move? Explain. lb) After the electrons move, what kind of charge, positive or negative, is on the left end of the conductor? (c) Will the left end of the metal bar be attracted, repelled, or do neither to the rubber ball. Explain