Electric flux through surface $s_1$
is minimum
is maximum
equal to $s_2$ but less than $s_4$
equal for all surfaces
Calculate the work done in taking a charge $-2 \times 10^{-9} \,C$ from $A$ to $B$ via $C$ is ......... (in diagram)
For shown situation of two dipoles the nature of forces between them are
What is the equivalent capacitance of the system of capacitors between $A$ and $B$ :-
Three capacitors $1, 2$ and $4\,\mu F$ are connected in series to a $10\, volts$ source. The charge on the plates of middle capacitor is
Two conducting spheres of radii $r_1$ and $r_2$ have same electric fields near their surfaces. The ratio of their electric potentials is