Concept explainers
By how much is the electrical force between a pair of ions reduced when their separation distance is doubled? Tripled?
To calculate: The electric force between a pair of ions reduced for the given changes.
Answer to Problem 47A
Force becomes
Force becomes
Explanation of Solution
Given: A pair of ions, separated by some distance.
The separation distance is doubled and if separation distance is tripled.
Formula used:
Calculation: From coulomb’s law
Here q1and q2are two charges and r is the separation between the two charges.
If the separation distance is doubled then let the force if F1,So
Comparing equation 1 and 2 , the force reduced to
If the separation distance is tripled then let the force if F2,So
Comparing equation 1 and 3 , the force reduced to
Chapter 32 Solutions
Conceptual Physics: The High School Physics Program
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