Write the limitations of Coulomb's law.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) The limitations of Coulomb's law are as follows:
$1$. It is applicable only for point charges. $A$ point charge is defined as a charge whose size is negligible compared to the distance between them.
$2$. It is valid only when the charges are at rest. If the charges are in motion,additional magnetic forces come into play.
$3$. It is applicable only for distances greater than the nuclear range (i.e.,$r > 10^{-15} \ m$). At distances smaller than this,strong nuclear forces dominate over electrostatic forces.
$4$. It is a fundamental law that holds true for distances ranging from the size of an atom to macroscopic distances.

Explore More

Similar Questions

Positive point charges are placed at the vertices of a star shape as shown in the figure. The direction of the electrostatic force on a negative point charge at the centre $O$ of the star is

Two point charges $+q_{1}$ and $+q_{2}$ are placed a finite distance '$d$' apart. It is desired to put a third charge $q_{3}$ in between these two charges so that $q_{3}$ is in equilibrium. This is

The value of electric permittivity of free space is

$A$ charge $Q$ is divided into two parts $q$ and $Q - q$. If the Coulomb repulsion between them when they are separated by a distance $r$ is to be maximum,the ratio of $\frac{Q}{q}$ should be:

Difficult
View Solution

Two identical pendulums $A$ and $B$ are suspended from the same point. The bobs are given positive charges,with $A$ having more charge than $B$. They diverge and reach equilibrium,with $A$ and $B$ making angles $\theta_1$ and $\theta_2$ with the vertical,respectively. Then:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo