A$-12$nCnC$$charge is at$$xx$=+2\mathrm{.}0$cmcm$$on the$$xx$-$axis.$$A second charge$$qq$$is located somewhere on the$$xx$-$axis$$to the left of the origin. The electric field at$$yy$=2\mathrm{.}0$cmcm$$on the$$yy$-$axis$$is$$E$=3\mathrm{.}0105$i$^$N$/$CE$=3\mathrm{.}0105$i$^$N$/$C$.$