Coulomb's Law Quiz

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Questions and Answers

According to Coulomb's Law, the force between two point charges at rest is directly proportional to which of the following?

  • The sum of the charges
  • Product of the magnitude of the charges (correct)
  • The cube of the distance between them
  • The square of the distance between them

What happens to the force between two charges if they are unlike (one positive and one negative)?

  • It doubles in magnitude
  • It becomes repulsive
  • It becomes zero
  • It becomes attractive (correct)

What happens to the force between two charges if they are similar (both positive or both negative)?

  • It becomes repulsive (correct)
  • It becomes zero
  • It doubles in magnitude
  • It becomes attractive

What is the expression for the force between two charges placed in a medium?

<p>$F = \frac{q_1 q_2}{4\pi\varepsilon_0 r_{med}^2}$ (C)</p> Signup and view all the answers

What does the constant of proportionality K depend on in Coulomb's Law?

<p>Units in which force, charges, and distance are expressed, and properties of the medium (B)</p> Signup and view all the answers

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