Author Question: Where, other than at infinity, is the electric field 0 in the vicinity of the dipole shown? ... (Read 123 times)

mckennatimberlake · **on:** Jul 28, 2018

Where, other than at infinity, is the electric field 0 in the vicinity of the dipole shown?

1.Along the y-axis.
2.At the origin.
3.At two points, one to the right of (a, 0), the other to the left of (-a, 0).
4.At two points on the y-axis, one below the origin, one above the origin.
5.None of the above.

Question 2

Two uniformly charged rods are positioned horizontally as shown. The top rod is positively charged and the bottom rod is negatively charged. The total electric field at the origin:

1.is zero.
2.has both a non-zero x component and a non-zero y component.
3.points totally in the +x direction.
4.points totally in the x direction.
5.points totally in the +y direction
6.points totally in the y direction.
7.points in a direction impossible to determine without doing a lot of math.