Two point charged particles with same amount charge quantity $(|$q$|)$ are located at the corners of a square of side $a=3\mathrm{.}68m$ as shown in the figure. What is the $y$ component $($unit in N$/$C$)$ of the total electric field at position $P?$ Given $|q_1|=|q_2|=|q|=7\mathrm{.}96nC,$