A positive point charge is located at the origin of an x-y coordinate system and

Question

A positive point charge is located at the origin of an x-y coordinate system and an electron is placed at a location where the electric field due to the point charge is given by E = E0 (i+j), where E0 is positive. Is the direction of the force on the electron (a) toward the origin, (b) away from the origin, (c) parallel to the x-axis, or (d) impossible to determine without knowing the coordinates of the electron's position?

I figured since E=F/q then if E is positive and we know that q is negative , then the F has to be negative too to make the E positive. So then the electric force on the electron would have to be away from the origin...I don't know if that thinking is right though...so if someone could let me know.. =/

Explanation / Answer

force acting on the electron in the Electric filed is always opposite to the direction of field

Since E is positive which means E is away from the origin then the force should be negative means that Force F is towards the origin

So the answer is A) toward the origin

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