
State and explain coulomb’s inverse square law.
Answer
482.4k+ views
2 likes
Hint: The fundamental unit of electric charge is called coulomb. Coulomb’s law gives the force between two charges separated by a distance. It is found that the electric charge of any system is always an integer multiple of the least amount of charge , where is the charge of the proton or electron.
Complete step by step answer:
Coulomb’s law states that the force of attraction or repulsion between two point charges is proportional to the product of charges and inversely proportional to the square of the distance between them.
If and are the two-point charges separated by a distance , then by Coulomb’s law
or
,
where is the constant of proportionality given by .
Here is the permittivity of the medium. If the charges are kept in free space (air or vacuum), , where is the permittivity of free space.
In air or vacuum, the force between two charges can be written as,
Additional Information:
One coulomb is defined as the quantity of charge which when placed at a distance of in air or vacuum from an equal and similar charge experiences a repulsive force of . If charges are similar, Coulomb force is positive and it is repulsive in nature. If one charge is positive and the other is negative, Coulomb force is negative, and it is attractive in nature.
Note: The relative permittivity or (dielectric constant) of a medium is defined as the ratio of the permittivity of the medium to the permittivity of free space. The magnitude of Coulomb force depends on the number of charges, the distance between the charges, and the nature of the media.
Complete step by step answer:
Coulomb’s law states that the force of attraction or repulsion between two point charges is proportional to the product of charges and inversely proportional to the square of the distance between them.
If
where
Here
Additional Information:
One coulomb is defined as the quantity of charge which when placed at a distance of
Note: The relative permittivity or (dielectric constant)
Latest Vedantu courses for you
Grade 10 | MAHARASHTRABOARD | SCHOOL | English
Vedantu 10 Maharashtra Pro Lite (2025-26)
School Full course for MAHARASHTRABOARD students
₹33,300 per year
Recently Updated Pages
Master Class 12 Business Studies: Engaging Questions & Answers for Success

Master Class 12 Economics: Engaging Questions & Answers for Success

Master Class 12 Maths: Engaging Questions & Answers for Success

Master Class 12 Biology: Engaging Questions & Answers for Success

Master Class 12 Physics: Engaging Questions & Answers for Success

Master Class 12 English: Engaging Questions & Answers for Success

Trending doubts
A deep narrow valley with steep sides formed as a result class 12 biology CBSE

a Tabulate the differences in the characteristics of class 12 chemistry CBSE

Why is the cell called the structural and functional class 12 biology CBSE

Which are the Top 10 Largest Countries of the World?

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

Derive an expression for electric potential at point class 12 physics CBSE
