DATA SHEET FOR CHARGE/MASS OF ELECTRON


Write in the radius of the circle (R), in centimeters, made by electrons 
for each combination of voltage to the electron gun (V), in volts, 
and current flowing through the Helmholtz coils (I), in amps.  
For each value of I, calculate the magnetic field strength in the 
center of the coils (B), in Tesla.

When you use the values for radius (R) in your calculations, remember
to translate from centimeters into meters!



Current    Mag                 Voltage to electron gun (Volts)
to coils  field
 (amps)  (Tesla)       75  100  125  150  175  200  225  250  275  300  350
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                   |
  1.0              |
                   |
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  1.5              |
                   |
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                   |
  2.0              |
                   |
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                   |
  2.5              |
                   |
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                   |
  3.0              |
                   |
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Last modified 9/2/2001 by MWR