Awire that is 0.36 meters long moves perpendicularly through a magnetic field at a speed of 0.21 meters/second. the induced emf produced in the wire is 0.45 volts. what is the magnetic field strength?

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.