The Coulomb force is:
Correct answer: A. F = kq1q2/d2
- A. F = kq1q2/d2
- B. F = kq1q2/d
- C. F = kq1q2/d3
- D. F = kq1d/q2
Explanation
The Coulomb force, also known as electrostatic force, is the fundamental force of attraction or repulsion between charged particles. It describes the interaction between two charged objects and is governed by Coulomb's law. The force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, it is expressed as:F= k q1q2/r2 Where:F is the magnitude of the electrostatic force between the charges,k is Coulomb's constant (8.9875×109N m2 / C2 in vacuum)q1 and q2 are the magnitudes of the charges,r is the distance between the charges.
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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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