Assignment

Figure shows electric field lines due to a charge configuration, from this we conclude that

Six point charges are placed at the vertices of a hexagon of side $1 \mathrm{m}$ as shown in figure. Net electric field at the centre of the hexagon is

A proton and an $\alpha$ particle having equal kinetic energy are projected in a uniform transverse electric field as shown in figure

Electric field in a region is uniform and is given by $\overrightarrow{\mathit{E}}\mathit{=}a\hat{\mathit{i}}\mathit{+}b\hat{\mathit{j}}\mathit{+}c\hat{\mathit{k}}\mathit{.}$ Electric flux associated with a surface of area $\overrightarrow{\mathit{A}}\mathit{=}\pi {\mathit{R}}^{\mathit{2}}\hat{\mathit{i}}$ is

An infinite line charge is at the axis of a cylinder of length $1 \mathrm{m}$ and radius $7 \mathrm{cm}.$ If electric field at any point on the curved surface of cylinder is $250 \mathrm{N} {\mathrm{C}}^{-1}$, then, net electric flux through the cylinder is

A small conducting sphere is hanged by an insulating thread between the plates of a parallel plate capacitor as shown in figure. The net force on the sphere is

If the number of electric lines of force emerging out of a closed surface is $1000,$ then the charge enclosed by the surface is

A charged body has an electric flux $\varphi$ associated with it. The body is now placed inside a metallic container. The flux $\varphi ,$ outside the container will be