The spatial distribution of the electric field due to two charges $(A,\,B)$ is shown in figure. Which one of the following statements is correct ?
$A$ is $+ve$ and $B$ $-ve$ ; $|A| > |B|$
$A$ is $-ve$ and $B$ $+ve$; $|A| = |B|$
Both are $+ve$ but $A > B$
Both are $-ve$ but $A > B$
Electric charge is uniformly distributed along a long straight wire of radius $1\, mm$. The charge per $cm$ length of the wire is $Q$ $coulomb$. Another cylindrical surface of radius $50$ $cm$ and length $1\,m$ symmetrically encloses the wire as shown in the figure. The total electric flux passing through the cylindrical surface is
Four closed surfaces and corresponding charge distributions are shown below
Let the respective electric fluxes through the surfaces be ${\phi _1},{\phi _2},{\phi _3}$ and ${\phi _4}$ . Then
An electric field is given by $(6 \hat{i}+5 \hat{j}+3 \hat{k}) \ N / C$.
The electric flux through a surface area $30 \hat{\mathrm{i}}\; m^2$ lying in $YZ-$plane (in SI unit) is
An electric dipole is put in north-south direction in a sphere filled with water. Which statement is correct
The total charge enclosed in an incremental volume of $2 \times 10^{-9} \,{m}^{3}$ located at the origin is ...... $nC,$ if electric flux density of its field is found as $D=e^{-x} \sin y \hat{i}-e^{-x} \cos y \hat{j}+2 z \hat{k}\, C / m^{2}$