Thank it makes sense now. I was confused because the direction is either clockwise or counterclockwise. I reallise now that they both point in the same direction in B and C.
Giving this graph and the given direction of the current, which quadrant(s) will have the greatest magnetic field?
It's question 6 in the practice exam: http://www.phys.ufl.edu/courses/phy2054/sum08/ps2e2sm02.pdf
All it gives is the direction of the current. I understand that the...
But if the point is not in between the two charges, then wouldn't the distance be 2 m from one charge, and 2+x from the other charge? See I just want to know how you decide if the point is in between the two charges, or if it is outside the two charges. After that I can solve the problem.
I'm seeing a lot of problems in my textbook where it asks you to find the point near two charges where the total electric field is zero. Whats the logic behind figuring out if the point will be on the left side, the right side, or between the two charges?
For example, one problem says there...
I can do this problem if they give a general equation, but the infinite boundaries are confusing me.
I don't know how to inert all the symbols so I'll link you to the problem. It's problem number 105 in the packet. http://www.math.ufl.edu/%7Ehuang/calc3/fall2007.pdf