Please help, I dont understand how to start this prolem You arrange two identica

Question

Please help, I dont understand how to start this prolem

You arrange two identical charges along the x-axis at positions (-3.0,0) and (3.0,0), with distances measured in centimeters. You've set things up so that the origin of your coordinates lies at the midpoint between the charges. You measure the electric force acting on the charge on the right and find it has a magnitude of 4660.4 N. You want to deduce the electric field vector that is acting on the right-hand charge. [Note that there are three answer boxes: enter the x-component of the field in the first box, the y-component of the field in the second box, and the z-component in the third box.]

Explanation / Answer

Electric field on the right,

E = Force action on it/ its charge

But to find charge use:

F=K*q*q/r^2

4660.4= (9*10^9)*q*q/(0.06)^2 since distance between both charges is 6 cm=0.06 m

so,

q= 4.32*10^-5 C

Now use:

E = F/q

= (4660.4)/(4.32*10^-5)

= 1.08*10^8 N/C

Finding direction:

This electric field is due to the charge on the left.

So it will point in x direction only.

So,

x component =   1.08*10^8 N/C

y component = 0

Z component = 0

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