The equivalent capacitance of the system of capacitors between $A$ and $B$ as shown in the figure
$\frac{7}{6}\,C$
$1.6\, C$
$C$
None
A $2\,\mu F$ capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch $S$ is turned to position $2$, is.....$\%$
The electric flux from a cube of edge $l$ is $\phi $. If an edge of the cube is made $2l$ and the charge enclosed is halved, its value will be
Three identical dipoles are arranged as shown below. What will be the net electric field at $M$
In the figure a capacitor is filled with dielectric. The resultant capacitance is
A parallel plate capacitor of area $A$, plate separation $d$ and capacitance $C$ is filled with three different dielectric materials having dielectric constant $K_1,K_2$ and $K_3$ as shown. If a single dielectric material is to be used to have the same capacitance $C$ in this capacitor, then its dielectric constant $K$ is given by: ($A =$ Area of plates)