The figure shows two uncharged identical metal spheres A and B in contact and a positively charged metal rod, R, placed close to A but not touching it.
Without any further action, the charges on A and B are respectively.
Negative and positive.
Negative and uncharged.
Positive and negative.
Positive and positive.
Which of the following affects the force between two charged bodies?
Weight of the bodies.
Mass of the bodies.
Distance between the bodies.
Speed of the bodies.