The spatial distribution of the electric field due to charges $(A, B)$ is shown in figure. Which one of the following statements is correct
$A$ is $+ve$ and $B\, -ve$ and $|A| > |B|$
$A$ is $-ve$ and $B\, +ve; |A| = |B|$
Both are $+ve$ but $A > B$
Both are $-ve$ but $A > B$
The figure shows two situations in which a Gaussian cube sits in an electric field. The arrows and values indicate the directions and magnitudes (in $N-m^2/C$) of the electric fields. What is the net charge (in the two situations) inside the cube?
If a charge $q$ is placed at the centre of a closed hemispherical non-conducting surface, the total flux passing through the flat surface would be
Draw electric field by negative charge.
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
Draw electric field lines of simple charge distribution.