12 Questions
What did Coulomb vary in his experiments to establish the force between charges?
Both the distance and magnitude of charges
What did Coulomb's experiments initially establish?
The mathematical relation for the force between charges
At what scale has Coulomb's law been established?
Both macroscopic and subatomic scales
What does Coulomb's law provide a definition for?
The unit of charge
What determines the size of the unit of charge in Coulomb's law?
The value of the constant k
What is the SI unit of charge called, based on the value of k chosen?
Coulomb
What is the main focus of the given text?
Explaining the concept of Coulomb's law
Under what condition can charged bodies be treated as point charges?
When the linear size of the charged bodies is much smaller than the distance separating them
What was Coulomb's approach to discover the relationship between force and charges?
He transferred charges from one sphere to another to observe the force variations
What happens when an uncharged metallic sphere is brought into contact with a charged metallic sphere?
The charge is distributed equally between the two spheres
According to Coulomb's law, what is the relationship between the force (F) and the distance (r) between two point charges?
$F \propto \frac{1}{r^2}$
What does the constant k in Coulomb's law equation ($F = \frac{k q_1 q_2}{r^2}$) represent?
The proportionality constant
Test your knowledge about Coulomb's law and the force between two point charges. Understand how the force varies with distance and charge magnitude.
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