(a)
Whether the electrostatic force between an unknown charge is same with the two given test charges.
(a)
Answer to Problem 7PP
No. The force on the
Explanation of Solution
Introduction:
Electrostatic force between the two charges is directly related to size of both the charges. According to Coulomb, the electrostatic force
Where
Since the electrostatic force between the two charges is directly related to the product of their charge, the electrostatic force between an unknown charge is not identical with the two given test charges. The force on the
Conclusion:
The electrostatic force between an unknown charge is not same with the two given test charges. The force on the
(b)
Whether the electric field measured between an unknown charge with the two given test charges are equal.
(b)
Answer to Problem 7PP
Yes
Explanation of Solution
Introduction:
Electric field is a physical quantity that gives relationship between the force exerted on a test charge and the size of a test charge. It is a vector quantity. If
Electric force is directly related to the test charge and hence the electric force is doubled if the charge is doubled. But the electric field is the ratio of the electric force to the test charge. Therefore, electric field on a charge is independent of its size. Thus, the electric field measured between an unknown charge with the two test charges
Conclusion:
The electric field measured between an unknown charge with the two test charges
Chapter 21 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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Sears And Zemansky's University Physics With Modern Physics
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