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Hall effect

VIEWS: 12 PAGES: 10

									Hall Effect

Form 6
Physics
PowerPoint
Presentation
   EDD 5161F
    Group 15
    Fu Siu Kit
  Lam Chi Wang
           Introduction
•   target audience: form 6 student in band 5
    school, weak in understanding of the
    abstract concepts.
•   After introduced what is the Hall effect,
    use the powerpoint slices to give a
    lecturing of mechanism of the Hall effect.
When electrons flow without
     magnetic field...

        t   semiconductor slice

+                                 _

                                      d
    I                         I
When the magnetic field is turned
            on ...




I                   qBv



      B-field
    As time goes by...
                            high
                          potential


                    qE


I

                           low
         qBv = qE
                         potential
        Finally...


                     VH
I


    B-field
      How to calculate
     the Hall voltage?
....................................
....................................
....................................
.........            BI
            VH 
                    nqt
         Do you know...
• What is the Hall effect?

• Why we use semiconductor slice to
  demonstrate the Hall effect?

• What is the application of the Hall effect?
Thank You

								
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