Electric Force and Coulomb's Law in Physics
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Questions and Answers

The electric force between two point charges is directly proportional to which of the following?

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

    • What is the proportionality constant for calculating the electric force between two charges?

  • 1 x 10^10
  • 9 x 10^9 (correct)
  • 6 x 10^9
  • 3 x 10^8

    • If a point charge is 30 μC and another point charge is -15 μC, with a distance of 0.5 m between them, what is the electric force between them?

  • -36 N
  • 18 N (correct)
  • 36 N
  • -18 N

    • In a scenario where two charges are 15 mm apart with magnitudes of 5 μC and -8 μC, what is the electric force between them?

    <p>-40 N</p> Signup and view all the answers

    If two point charges are 10 cm apart with magnitudes of 6 μC and 4 μC respectively, what is the magnitude of the electric force between them?

    <p>2.16 x 10^-5 N</p> Signup and view all the answers

    If two charges are separated by a distance of 12 cm with magnitudes of 3 μC and -10 μC, what is the direction of the electric force between them?

    <p>Attraction</p> Signup and view all the answers

    What is the net force acting on q2 due to q1 and q3?

    <p>2.27 x 10^10 N (to the left)</p> Signup and view all the answers

    What is the net force acting on q1 due to q2 and q3?

    <p>2.45 x 10^-9 N (to the right)</p> Signup and view all the answers

    What is the separation distance between two point charges of 3.37 μC and -8.21 μC that attract each other with a force of 6.26 x 10^-2 N?

    <p>1.99 m</p> Signup and view all the answers

    If q1 = 4 μC and q2 = -6 μC, what will be the force between them at a separation distance of 0.5 m?

    <p>-4.92 N</p> Signup and view all the answers

    For a system with q1 = 7 μC and q2 = -2 μC separated by a distance of 0.3 m, what is the force between them?

    <p>-2.55 N</p> Signup and view all the answers

    If q1 = -5 μC and q2 = -3 μC, what will be the force between them at a separation distance of 0.8 m?

    <p>-5.54 N</p> Signup and view all the answers

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