Draw electric field lines of simple charge distribution.
The picture of field lines was invented by Faraday to develop an way to visualizing electric fields around charged configurations. Faraday called them lines of force.
Figures show the field lines around some simple charge configurations. As mentioned earlier, the field lines are in $3$-dimensional space, though the figure shows them only in a plane.
Electric field lines for positive charge are shown in figure $(a)$. Electric field lines for negative charge are shown in figure $(b)$. Electric field lines for dipole are shown in figure $(c)$. For information :
$(a)$ Electric field lines for two negative charges :
$(b)$ Electric field lines for uniform electric fields :
$(c)$ Electric field lines on metallic sphere in uniform electric field :
Explain electric flux.
An infinite, uniformly charged sheet with surface charge density $\sigma$ cuts through a spherical Gaussian surface of radius $R$ at a distance $x$ from its center, as shown in the figure. The electric flux $\Phi $ through the Gaussian surface is
Five charges $+q,+5 q,-2 q,+3 q$ and $-4 q$ are situated as shown in the figure.
The electric flux due to this configuration through the surface $S$ is
An electron revolves around an infinite cylindrical wire having uniform linear change density $2 \times 10^{-8}\,Cm ^{-1}$ in circular path under the influence of attractive electrostatic field as shown in the figure. The velocity of electron with which it is revolving is $.........\times 10^6\,ms ^{-1}$. Given mass of electron $=9 \times 10^{-31}\,kg$
A few electric field lines for a system of two charges $Q_1$ and $Q_2$ fixed at two different points on the $x$ -axis are shown in the figure. These lines suggest that:-