The correct expression for the coulomb's force is:
Correct answer: B. F = 1/4πe0 x q1q2/r2 x r
- A. F-1=1/4πe0 x q1q2/r2 x r
- B. F = 1/4πe0 x q1q2/r2 x r
- C. F-1 = 1/4πe x q1q2/r2 x r
- D. F = 1/4πe x q1q2/r2 x r
Explanation
According to the expression of coulomb's law, the magnitude of Coulomb's force is directly proportional to the product of two point charges and inversely proportional to the square of the distance between them.
This question appeared on the ETEA MDCAT 2011 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Coulomb's Law
Coulomb's law gives the electrostatic force between two point charges in terms of their magnitudes, separation and the medium between them. Questions involve attraction and repulsion, the inverse square relationship, superposition of forces and vector direction, which must not be confused with the electric field produced by a charge.
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 Coulomb's Law questions
The Coulomb's force between two point charges q1=1C and q2 is 2N. Where the distance between them is 3m, the charge q2 is:
The minimum charge on an object cannot be less than:
The presence of a dielectric between two charged particles:
When a neutral body is rubbed and it becomes positively charged, it must have:
The Ratio of electro force between two protons to that between two electrons is of the order of:
When 1012 electrons are received from a neutral metal sphere. The charge on the sphere becomes: