1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Hall Effect

  1. Sep 30, 2013 #1
    1. The problem statement, all variables and given/known data

    OeP0E2B.png

    2. Relevant equations



    3. The attempt at a solution

    $$Δ{ V }_{ H }=\frac { IB }{ nqt } \\ 9.6*{ 10 }^{ -6 }=\frac { 50*1.3 }{ n*e*3.3*{ 10 }^{ -4 } } \\ n=1.28*{ 10 }^{ 29 }\quad electrons/{ m }^{ 3 }$$
     
  2. jcsd
  3. Sep 30, 2013 #2

    mfb

    User Avatar
    2017 Award

    Staff: Mentor

    You can use WolframAlpha to check calculations like that.
     
  4. Oct 1, 2013 #3
    I thought the method was wrong because it gives us d=1mm but we don't use it in our calculations.
     
  5. Oct 1, 2013 #4

    mfb

    User Avatar
    2017 Award

    Staff: Mentor

    I'm not sure where the Hall voltage is measured, either 0.330mm or 1mm is not necessary.
     
  6. Oct 1, 2013 #5

    gneill

    User Avatar

    Staff: Mentor

    Take a look at the Hyperphysics web page on the Hall Effect.

    @Turion: Your calculation looks good.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted