Physics - Elecrostatics Question with Solution | TestHub

The electric field in a region is given by$\overrightarrow{\mathrm{E}}=\left(\mathrm{A}\mathrm{x}+\mathrm{B}\right)\mathrm{ }\widehat{\mathrm{i}} ,$where$\mathrm{E}$is in$\mathrm{N}{\mathrm{C}}^{-1}$and$x$is in metres. The values of constants are$\mathrm{A}=20\mathrm{ }\mathrm{S}\mathrm{I}$unit and$\mathrm{B}=10\mathrm{ }\mathrm{S}\mathrm{I}$unit. If the potential at$x=1$is${\mathrm{V}}_1$and that at$x=-5$is${\mathrm{V}}_2,$then${\mathrm{V}}_1-{\mathrm{V}}_2$is