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The electrostatic force between two point charges q1 and q2 at separation r is given by F=kq1 q2/ r^2 . The constant k

Correct answer: D. is independent of both the system of units and the medium between the charges

  • A. depends on the system of units only
  • B. depends on the medium between the charges only
  • C. depends on both the system of units and the medium between the charges
  • D. is independent of both the system of units and the medium between the charges

Explanation

The constant k in Coulomb's law is known as the Coulomb's constant and has a value of 8.9875×10^9N m^2/C^2. It is independent of the system of units used and the medium between the charges.Incorrect options: (a) and (b) Coulomb's constant is a universal constant and is not dependent on either the system of units or the medium between the charges.(c) Coulomb's constant is independent of both the system of units and the medium between the charges.

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