Question

Why is Coulomb's law important?

Answer 1

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It signifies, the inverse square dependence of electric force. It can also be used to provide relatively simple derivations of Gauss' law for general cases accurately. Finally, the vector form of Coulomb's law is important as it helps us specify the direction of electric fields due to charges.

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Answer 2

Answer:

Coulomb's law is true for point charges separated by very large distances to very small distances such as atomic distances, and nuclear distances.

Therefore, it not only gives us the force acting between charged bodies but also helps in explaining the forces which bind electrons with the nucleus in an atom, two or more atoms in a molecule and several atoms or molecules in solids and liquids.

In our daily life, we experience many forces which are not gravitational but are electrical.

Therefore, this law is important.