Recent content by alever

Now I have a similar question: two positive point charges +2Q and the effect on +q. Question: http://www.csu.edu/chemistryandphysics/msabella/ccli/UpdatedLabs/physics2-calc/HW%20packet.pdf (2nd part of question #2 dealing with Case C and Case D) I'm just not sure where to start with this...

Great, Thanks!

Ok, so the force would be greater in Case B then, because as the angle deceases cosine would be larger, making the magnitude greater?

So when adding the components would it be: Fnetx=kqQ/r^2 cos angle Fnety=kqQ/r^2 sin angle And since the angle is bigger in Case A, we would get a larger magnitude of the net force?

Yes, I do. However, I'm just confused because there is no real data here as far as angles are concerned. All we know is that Case B has a smaller angle than Case A. Just thinking about it, I thought that the smaller angle would mean a greater force, because the the two source charges are closer...

Homework Statement In cases A and B shown there are two positive charges +Q each a distance s away from a third positive point charge +q. Is the net electric force on the +q charge in case A greater than, less than, or equal to the net electric force on the +q charge in case B? Explain...

gneill, thanks for your quick response. The +Q and -Q will be attracted toward the middle, so their force vectors will point toward each other, and the positive test charge in the middle would be attracted to the -Q charge, is that what you were referring too...

Homework Statement The questions asks to consider the following comment about a situation where there are three point charges held fixed along a linear line. "There will be zero net electric force on the charge in the middle due to the other charges. Using Coulomb's law, the force due to...