Electric Force

The diagram above shows a proton at point B between two electrons at points A and C. The distance from point B to point C is twice the distance from point B to point A. What is the force of the proton at point B?

a)       Two times stronger from the electron at A

b)       Three times stronger from the electron at A

c)       Four times stronger from the electron at A

d)      The same from both electrons

e)       It cannot be determined from the information provided.