An electron is accelerated from rest through potential difference V and then enters a
Chapter 28, Problem 20(choose chapter or problem)
An electron is accelerated from rest through potential difference V and then enters a region of uniform magnetic field, where it undergoes uniform circular motion. Figure 28-38 gives the radius r of that motion versus V1/2. The vertical axis scale is set by , and the horizontal axis scale is set by What is the magnitude of the magnetic field? rs0V 1/2 (V1/2)V s1/2Figure 28-38 20.
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