The electric potentials at point A are created by two point charges, Qi$=-49$pC$,$ and Q$2-+49$C$.($i$)$ Calculate the electric potential at point A due to Qi$.$Answer: $($a$)5\mathrm{.}04$x$10^(5)$ V$.($b$)9\mathrm{.}14$x$101(-3)$ V$.($c$)6\mathrm{.}51$x$10^(-1)$ V$($d$)1\mathrm{.}05$x$10^(6)$ V$.($e$)7\mathrm{.}15$x$10^(5)$ V$.()($ii$)$ Calculate the electric potential at point A due to Q$2,$ Answer: $($a$)5\mathrm{.}04$x$10^(5)$ V$.($b$)9$:$14$x$10^(-3)$ V$.($c$)6\mathrm{.}51$x$101(-1)$ V$($d$)1\mathrm{.}05$x$101(6)$ V$.($e$),7\mathrm{.}15$x$10^(5)$ V$.($f$($iii$)$ Calculate the total electric potential at point A due to Qi and Q$2.$Answer: $($a$)5\mathrm{.}04$x$10^(5)$ V$.($b$)9\mathrm{.}14$x$10^(-3)$ V$.($c$)6\mathrm{.}51$x$10^(-1)$ V$($d$)1\mathrm{.}05$x$101(6)$ V$.($e$)7\mathrm{.}15$x$101(5)$ V$.$