Question

1.Move the north pole of your magnet parallel and then perpendicular to the electron beam in an oscilloscope. What is the direction of the displacement (and hence the force on the beam) in each case? Sketch vectors showing the direction of the magnetic field, the direction of motion of the original electron beam before it was deflected, and the direction of the resultant force on the beam.

2.Show that the right hand rule properly describes your observations (at least qualitatively) in terms of the relative directions of the three vectors. Hint: Don’t forget that q is negative in the case of an electron beam.

Answer 1