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Please wait for the animation to completely load.
A mass spectrometer measures the mass of particles. The first step in the operation of the mass spectrometer is to select particles of a particular velocity. As you work through this exploration you will see how a velocity selector operates. The animation shows a positively charged particle entering a constant magnetic field directed into the screen. Restart.
BEFORE you play the animation, PREDICT the path the charge will follow. I have already made my prediction, let me see the path. Were you correct? If not, what caused your error?
Now, suppose a constant electric field is added to the region with the magnetic field.
Exploration authored by Melissa Dancy and Wolfgang Christian.
? 2004 by Prentice-Hall, Inc. A Pearson Company