Two charges, $Q_1=2\mathrm{.}50C,$ and $Q_2=7\mathrm{.}00C$ are located at points $(0,-4\mathrm{.}00cm)$ and $(0,+4\mathrm{.}00cm),$ as shown in the figure.

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What is the $x-$component of the total electric field at $P?$

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What is the $y-$component of the total electric field at $P?$

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What is the maqnitude of the total electric field at P$?$

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Now let $Q_2=Q_1=2\mathrm{.}50C.$ Note that the problem now has a symmetry that you should exploit in your solution. What is the magnitude of the total

electric field at $P?$

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Given the symmetric situation of the previous problem, what is the magnitude of the force on an electron placed at point P$?$

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