Concept explainers
(a)
The net-electrostatic force on the third particle with charge
(a)
Answer to Problem 63PQ
The net-electrostatic force on the third particle with charge
Explanation of Solution
The net-electrostatic force on the particle with charge
Write the expression for Coulomb’s law.
Here,
The force due to 1 on 3 is in the
Substitute
Substitute
Write the expression to find the net-electrostatic force on the third particle with charge
Here,
Conclusion:
Substitute
Therefore, the net-electrostatic force on the third particle with charge
(b)
Compere the force on
(b)
Answer to Problem 63PQ
The force on
Explanation of Solution
Write the expression for Coulomb’s law.
Here,
Conclusion:
Substitute
Therefore, the force on
In the case, the separation and the distance to the 3rd charge is comparable. The first two charges cannot be replaced by an effective charge at origin.
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Chapter 23 Solutions
Physics for Scientists and Engineers: Foundations and Connections
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