A point charge of $2.0\; \mu \,C$ is at the centre of a cubic Gaussian surface $9.0\; cm$ on edge. What is the net electric flux through the surface?
$4.166 \times 10^{6} \;N \;m ^{2} C ^{-1}$
$7.24 \times 10^{4} \;N \;m ^{2} C ^{-1}$
$8.34 \times 10^{5} \;N \;m ^{2} C ^{-1}$
$2.26 \times 10^{5} \;N \;m ^{2} C ^{-1}$
How does the no. of electric field lines passing through unit area depend on distance ?
Gauss’s law is true only if force due to a charge varies as
$\mathrm{C}_1$ and $\mathrm{C}_2$ are two hollow concentric cubes enclosing charges $2 Q$ and $3 Q$ respectively as shown in figure. The ratio of electric flux passing through $\mathrm{C}_1$ and $\mathrm{C}_2$ is :
Linear charge density of wire is $8.85\,\mu C/m$ . Radius and height of the cylinder are $3\,m$ and $4\,m$ . Then find the flux passing through the cylinder
If a spherical conductor comes out from the closed surface of the sphere then total flux emitted from the surface will be