Two charges, $Q_1=2\mathrm{.}50C,$ and $Q_2=6\mathrm{.}20C$ are located at points $(0,-3\mathrm{.}50cm)$ and $(0,+3\mathrm{.}50cm),$ as shown in the figure.

What is the magnitude of the electric field at point $P,$ located at $(6\mathrm{.}00cm,0),$ due to $Q_1$ alone?

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

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

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What is the magnitude 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$?$