Example: Consider following charges q$\_1=1\mathrm{.}75$mC $($microcoulombs$)$ which is placed at the origin. A$)$ Find the electric field at $(1$ cm$,0$ cm$).$ B$)$ Find the electric field at $(0$ cm$,1$ cm$).$ C$)$ Find the electric field at a point I cm from the cource charge but $45\backslash$deg above the x$-$axis