The coulomb's constant k depends upon:
Correct answer: D. nature of medium and system of units
- A. nature of medium
- B. system of units
- C. types of charge
- D. nature of medium and system of units
Explanation
Coulomb's constant, denoted by k, is a fundamental constant in electrostatics that determine the strength of the electrostatic force between two charged particles. It is expressed as: k = 1 / (4πεo) Where εo is the permittivity of free space. The value of k depends on both the nature of the medium and the system of units being used. The nature of the medium affects the permittivity, which is a measure of how easily electric fields can propagate through a material. Similarly, the system of units used can also affect the value of Coulomb's constant.
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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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