(i asked this question before but one of the formulas wasn't showing so I ask the question again with the formula added)

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answerhappygod
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(i asked this question before but one of the formulas wasn't showing so I ask the question again with the formula added)

Post by answerhappygod »

(i asked this question before but one of the formulas wasn't
showing so I ask the question again with the formula added)
I know that only one question is allowed on the
site so I will post 3 questions one for every
subquestion this is for subquastion number 1
I Asked This Question Before But One Of The Formulas Wasn T Showing So I Ask The Question Again With The Formula Added 1
I Asked This Question Before But One Of The Formulas Wasn T Showing So I Ask The Question Again With The Formula Added 1 (6.46 KiB) Viewed 12 times
1) what is the effective mass of an electron in the conduction
band in energy E=0
2) what is the effective mass of an electron in the conduction
band for a very big k values
3) find the equation for 1/m(k) for a realy small k values
, (write only the equation where k in the first power (
k^1, not k^2, k^3...) )
I Asked This Question Before But One Of The Formulas Wasn T Showing So I Ask The Question Again With The Formula Added 2
I Asked This Question Before But One Of The Formulas Wasn T Showing So I Ask The Question Again With The Formula Added 2 (1.94 KiB) Viewed 12 times
I Asked This Question Before But One Of The Formulas Wasn T Showing So I Ask The Question Again With The Formula Added 3
I Asked This Question Before But One Of The Formulas Wasn T Showing So I Ask The Question Again With The Formula Added 3 (2.14 KiB) Viewed 12 times
h?k2 E(1 + aE) = 2m
1 1 1 V1 (1+x=1+-x-x'+ x + = x 2 8 16
-1 m m 1 d’E tdk 2
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