A negatively charged plastic comb is brought close to, but not touch, a small piece of paper. If the comb and the paper are attracted to each other, the charge on the paper a.must be positive. b.may be positive or neutral. c.must be negative. d.may be negative or neutral

8. Which one of these statements is true? A. Like charges attract, unlike charges repel. B. Like charges attract, like charges repel. C. Unlike charges attract, unlike charges repel. D. Unlike charges attract, like charges repel.

A short copper rod has a neutral charge. Negative charges are then applied to the right end of the rod. Which of the following describes the charge on the copper rod 5 s later? A. Both ends of the rod have a positive charge. B. The negative charge is spread evenly along the rod. C. Only the right end of the rod has a negative charge. D. All of the positive charge is in the middle of the rod. The diagram below shows two electric charges, -q and +q, separated by a distance, d. +q -q d What happens to the electric force between the charges if the magnitude of each charge is doubled? A. It becomes 16 times less. B. It becomes 2 times less. C. It becomes 4 times greater. D. It becomes 8 times greater. What is the primary difference between insulators and conductors? A. Electrons are present in insulators but not in conductors. B. Electrons are present in conductors but not in insulators. C. Electrons are free to move in insulators but not in conductors. D. Electrons are free to move in…

Doug rubs a piece of fur on a hard rubber rod, giving the rod a negative charge. What happens? a. Protons are removed from the rod.b. Electrons are added to the rod.c. The fur is also charged negatively. d. The fur is left neutral.

1. A negatively charged Iron ball A is placed in contact with a neutrally charged iron ball B. If Iron ball A transferred 5x10^5 of electrons to Iron ball B, what will be the net charge on Iron ball B?

A charged plastic rod attracts a charged glass rod. This means that______________.     a. one of them is negatively charged and the other is positively charged. b.one of them is positively charged and the other is positively charged. c. one of them is negatively charged and the other is negatively charged. d. one of them is negatively charged and the other is neutrally charged.