Consider two metal plates. Between them sits a metal ball suspended from a pendulum. The ball is free to swing left-and-right. HI Now, bring the sphere to rest hanging in the middle and add negative charges to the plate on the left while connecting the right plate to the Earth (ground it). Say the ball is electrically neutral and hanging in the middle as shown. What will it do? I | I O a. It will begin to swing to the right - toward the grounded plate. 0 b. It will begin to swing to the left - toward the negatively charged plate. 0 c. It will just remain stationary. Now, presume that the, still neutral, ball is brought into contact with the negatively charged plate. What will it do? O a. There will be a repulsive force between the plate and the ball 0 b. It will fall away only under gravity - i.e. no electrical forces acting on it. 0 c. It will remain where it is - stuck to the negatively charged plate