The correct expression for Coulomb's law/force is
Correct answer: B. F = (k)(q1q2/r^2)
- A. F = (1/k)(q1q2/r^2)
- B. F = (k)(q1q2/r^2)
- C. F = 4π€(q1q2/r^2)
- D. F = (k)(r^2/q1q2)
Explanation
Coulomb's law states that the electrostatic force between two point charges is given by the product of the magnitudes of the charges divided by the square of the distance between them, multiplied by the electrostatic constant k.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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