Early Works.

Eddy Current Braking System.

How does the air gap between a permanent magnet and a rotating aluminum disk affect braking time?

I was first exposed to the phenomenon of eddy currents when I read about the experiment where you drop a magnet through a copper tube. However, what intrigued me was the varied practical applications of an eddy current braking system and how it can aid or even replace our standard method of braking. I particularly wanted to gain a better understanding of the limitations of this phenomenon.

This experiment is concerned with how changing the air gap between a permanent magnet and a non-ferrous rotating disk affects the braking time of the disk, determining the effectiveness of an eddy current braking system. Effectiveness in this study refers to the ECB being able to stop motion in the shortest amount of time.

Cathode Ray Tube Deflection.

What is the relationship between accelerating voltage and the deflection of an electron beam?

I am particularly interested in the motion of electrons in electric and magnetic fields. During an in-class demonstration, I watched the luminous spot on the Cathode Ray Tube's phosphor screen move as I changed the accelerating voltage knob in the slightest way. I want to explore the underlying workings of electron beam deflection.