$+1\mathrm{.}00$ nC of charge is uniformly distributed along the left half of a thin rod of total length L $=4\mathrm{.}00$ m$,$ while $-1\mathrm{.}00$ nC of charge is uniformly distributed along the right half of the rod, as shown in the figure. What is the magnitude of the electric field E$$

at the dot, a distance r $=1\mathrm{.}55$ m from the centre of the rod?$+1\mathrm{.}00nC$ of charge is uniformly distributed along the left half of a thin rod of total length $L=4\mathrm{.}00m,$ while $-1\mathrm{.}00nC$ of charge is uniformly distributed along the right half of the rod, as shown in the figure.

What is the magnitude of the electric field vec$(E)$ at the dot, a distance $r=1\mathrm{.}55m$ from the centre of the rod?

Magnitude: