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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electrostatics
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.
Practise Electrostatics
831 free Electrostatics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrostatics questions
Which one of the following statements is true?
What is the potential difference between two point in an electric field if it takes 600J of energy to move a charge of 2C between two points?
A capacitor is charged with a battery and energy stored is u. After disconnecting battery another capacitor of same capacity is connected in parallel to the first capacitor. Then energy stored in each capacitor is
A charged particle is moving in a uniform electric field. For the motion of the particle due to the field, which quantity has a constant non-zero value?
The energy stored in a capacitor is given by:
Two charges, one of which is Q1 = 3 μC and second one Q2 = -1 μC are separated by 100cm. The electric potential is zero at a point: