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 -9 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 conductors but not in insulators.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter19: Electric Forces And Electric Fields
Section: Chapter Questions
Problem 62P
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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 conductors but not in insulators.
Transcribed Image Text: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 conductors but not in insulators.
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