\text { Q2. There is a proton at point } P_{1}\left(\begin{array}{l} 1 \\ 0 \\ 0 \end{array}\right) \text { and another proton at point } P_{2}\left(\begin{array}{c} -1 \\ 0 \\

0 \end{array}\right) \text { , The } charge of a proton is 1.602 x 10^-19 C. \text { (a) What is the electric field at point } B\left(\begin{array}{l} 0 \\ 1 \\ 0 \end{array}\right) \text { ? } (b) If another proton is placed at point B, that is force experienced by the proton at B due to other two protons?