These Helmholtz coils are essential components for determining the specific charge of an electron (e/m) using a fine-beam tube (experiment 8000667 / 8000668). Additionally, in combination with the flat coil in a rotatable frame (item no: 1013131), the Helmholtz coils are utilized in experiments investigating induction.
The Pair of Helmholtz coils is used for generating a homogeneous magnetic field. The coils can be switched in parallel or in series.
A spring clip on the top crossbar is used to mount the Hall sensor during measurements of the magnetic field.
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Number of turns per coil: |
124 |
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Outer coil diameter: |
311 mm |
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Inner coil diameter: |
287 mm |
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Mean coil radius: |
150 mm |
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Coil spacing: |
150 mm |
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Enamelled copper wire thickness: |
1,5 mm |
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DC resistance: |
1.2 Ohm each |
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Maximum coil current: |
5 A |
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Maximum coil voltage: |
6 V |
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Maximum flux density at 5 A: |
3,7 mT |
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Connections: |
4 mm safety sockets |
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Weight: |
4.1 kg approx. |
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