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Deflection of electrons in an axial magnetic field /
Deflection of electrons in an axial magnetic field

Deflection of electrons in an axial magnetic field

VP3.8.3.2

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Description

In the experiment P3.8.3.2 an axial magnetic field is applied using an electromagnet. The shadow cross turns and shrinks as a function of the coil current. When a suitable relationship between the high voltage and the coil current is set, the cross is focused almost to a point, and becomes larger again when the current is increased further. The explanation for this magnetic focusing may be found in the helical path of the electrons in the magnetic field.

Components of equipment sets

1	555620 4	Maltese cross tube
1	555600 4	Tube stand
1	555604 8	Pair of Helmholtz coils
1	52170 8	High-voltage power supply, 10 kV
1	521546 4	DC Power Supply 0...16 V/0...5 A
1	500611 4	Safety experiment cable, 25 cm, red
2	500621 4	Safety experiment cable, 50 cm, red
1	500622 4	Safety experiment cable, 50 cm, blue
2	500641 8	Safety experiment cable, 100 cm, red
2	500642 4	Safety experiment cable, 100 cm, blue
2	500644 8	Safety experiment cable, 100 cm, black

Experiment Instructions

PDF (Experiment description)

P3.8.3.2 Deflection of electrons in an axial magnetic field

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Deflection of electrons in an axial magnetic field

Description

Components of equipment sets

Experiment Instructions

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