5 Questions
What is the mathematical expression for the electrical force between two stationary point charges according to Coulomb's Law?
$Fe = \frac{k_e q_1 q_2}{r^2}$
What is the SI unit of charge?
Coulomb (C)
When are the electrical forces between two point charges attractive?
If the charges are of opposite sign
What does the term 'point charge' refer to?
A particle with zero size that carries an electric charge
What did Charles Coulomb measure to determine the magnitudes of electric forces between two small charged spheres?
The separation between the charged spheres
Test your knowledge on electric fields, Coulomb's law, and the contributions of Charles Coulomb to the field of physics.
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