(Figure 1)Consider three plastic balls (A, B, and C), each carrying a uniformly distributed charge equal to either +Q, -Q or zero, and an uncharged copper ball (D). A positive test charge (T) experiences the forces shown in the figure when brought very near to the individual balls. The test charge T is strongly attracted to A, strongly repelled from B, weakly attracted to C, and strongly attracted to D. Learning Goal: To understand the electric force b and uncharged conductors and Assume throughout this problem that the balls are brought very close together. insulators. When a test charge is brought near a charged object, we know from Coulomb's law that it will experience a net force (either attractive or repulsive, depending on the nature of Part A the object's charge). A test charge may also experience an electric force when brought near a neutral object. Any attraction of a neutral insulator or neutral conductor to a test charge must occur through induced pola ization. In an insulator, the electrons are bound to their molecules. Though they cannot move freely throughout the insulator, they can Part B shift slightly, creating a rather weak net attraction to a test charge that is brought close to the insulator's surface. In a conductor, free electrons will accumulate on the surface of the conductor nearest the positive test charge. This will create a strong attractive force if the test charge is placed very close to the conductor's surface. Part C What is the nature of the force between balls A and D? View Available Hint(s) attractive O repulsive neither attractive nor repulsive Submit Part D Complete previous part (s) Provide Feedback Next > Figure