To create a horseshoe magnet, take a bar magnet and bend it into a u-shape. The creates a strong magnetic field in the region between the two poles at the end of the horseshoe magnet. An electron is shot through a spot somewhere between these ends of a horseshoe magnet. The electron : a) is unaffected by the field.
b) direction is changed.
c) speed is changed.
d) is attracted to one of the poles, and repelled by the other.
e) is repelled by both poles, and therefore is turned back.

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.