Helmholtz Coil

Helmoltz Coil

Concept Overview:

1. Production of a uniform magnetic field resulting in a circular beam of electrons

2. Measurement of the charge to mass ratio of the electron

Lecturer Procedure

Step(s) to Follow	Expected Result
1. Turn on coil 2. Wait 30 seconds - unit will perform self test. 3. Adjust voltage to 200V 4. Adjust current until circular beam exists	See image below
For charge to mass ratio: - Measure the diameter of the beam and complete the necessary caluclations

Step(s) to Follow

Expected Result

1. Turn on coil

2. Wait 30 seconds - unit will perform self test.

3. Adjust voltage to 200V

4. Adjust current until circular beam exists

See image below

For charge to mass ratio:

- Measure the diameter of the beam and complete the necessary caluclations

Results:

Electron beam curved in a circle