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Help with magnetism- hall probes- difference between 3 types -

  1. Apr 17, 2009 #1
    Help with magnetism- hall probes- difference between 3 types -URGENT

    Given 3 uncalibrated hall probes A, B, C, a solenoid of a known number of turns and length and a long straight wire. I have to discover which of 3 probes is a metal, a p-type semiconductor, and an n-type semiconductor.The n-type semiconductor has to be calibrated, and also need to investigate how the magnitude of the magnetic flux density (B) at a distance (r) away from a long straight wire carrying current (I) depends on the distance (r). Other apparatus in a school lab may be used.....how do i go about doing this?....??.....confused and stressed
     
  2. jcsd
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