Every physical phenomenon in the Physics world involves some sort of attractions and repulsions and make the world exist in a special form. It is because of attraction and repulsions between particles that the environment remains in a well-equipped and well balanced environment. Copy the link given below and paste it in new browser window to get more information on Coulomb’S Law www.askiitians.com/iit-jee-electrostatics/coulombs-law/

1. Coulomb’s Law

2. Coulomb’s Law
 Coulomb stated that the force of
attraction/repulsion between two charges is
directly proportional to the product of charges and
inversely proportional to the square of distance
between them
 The force is of repulsive nature if both charges
are of same sign and it is of attractive nature if
both charges are of opposite sign

3. Discovery of Coulomb’s Law
 Coulomb performed an experiment and stated the
Coulomb’s Law in accordance with it
 He used torsion balance and two spheres
 He recorded measures of force by varying
distance of both spheres and then proceeded to
the conclusion

4. Vector Form of Coulomb’s Law
 As force is a vector quantity, it has direction too
 We introduce position vectors to define the vector
form of Coulomb’s Law

5. Limitations
 Coulomb’s Law can only be used if there the
charges are at rest
 The law is valid if both the charges are kept in a
vacuum

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