What is the formula for Coulomb's law?
Correct answer: A. F=Kq1q2/r2
- A. F=Kq1q2/r2
- B. F=2Kq1q2/r3
- C. F=Kq1/r
- D. F=Kq1/q2
Explanation
Coulomb's law states that electric force is directly proportional to the product of two point charges and inversely proportional to the square of separation. It should be notes that when the sign of proportionality is removed, we add a constant in the equation so that it becomes Force = Kq1q2 / r2
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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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