Which of the following affects the force between two charged bodies?
Distance between the bodies.
Weight of the bodies.
Speed of the bodies.
Mass of the bodies.
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 uncharged.
Negative and positive.
Positive and positive.
Positive and negative.