Qualification > Sciences
HALL PROBE
Dude22:
A hall probe was mentioned in my paper 4 this year
LOL
But it didnt need any knowledge of the Hall probe just magentism
I would also like to see which papers have this, so I can get an idea of what they ask ;D
Gaz:
--- Quote from: Dude22 on May 31, 2010, 04:43:21 pm ---A hall probe was mentioned in my paper 4 this year
LOL
But it didnt need any knowledge of the Hall probe just magentism
I would also like to see which papers have this, so I can get an idea of what they ask ;D
--- End quote ---
ur paper 4? cie? if so, which variant?
AndrewCedric:
It IS in the CIE syllabus.
It is a sliced dope of semi-conductor material.
Why semiconductor??
Cause it will produce a higher Hall Voltage (( Reduce % Error and easier to see ))
Hall Voltage= BI / NQ
N= No. of charge per unit volume.
Sliced Semi Conductor--> lower Charge carrier per unit colume
U must calibrate hall probe and see the rdgs on the Voltmeter.
Place it 90 degrees to the B
The Calibration formula can be given as
B/Bo=V/Vo
Gaz:
--- Quote from: AndrewCedric on May 31, 2010, 04:55:59 pm ---It IS in the CIE syllabus.
It is a sliced dope of semi-conductor material.
Why semiconductor??
Cause it will produce a higher Hall Voltage (( Reduce % Error and easier to see ))
Hall Voltage= BI / NQ
N= No. of charge per unit volume.
Sliced Semi Conductor--> lower Charge carrier per unit colume
U must calibrate hall probe and see the rdgs on the Voltmeter.
The Calibration formula can be given as
B/Bo=V/Vo
--- End quote ---
Vo being the maximum voltage? im sure we dont need that much detail though.
AndrewCedric:
--- Quote from: Gaz on May 31, 2010, 04:59:46 pm ---Vo being the maximum voltage? im sure we dont need that much detail though.
--- End quote ---
Initial Voltage. U calibrate with a known magnetic field Bo, it registers Vo.
U do need to know some of its basics to have an idea how to make use of the apparatus.
;) :D :)
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