재료工學과 과학 18장 연습문제
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재료工學과 과학 18장 연습문제
재료공학과,과학,18장,연습문제,공학기술,레포트
재료工學과 과학 18장 연습문제
Download : 재료공학과 과학 18장 연습문제.pdf( 94 )
설명
순서
18-1
CHAPTER 18
ELECTRICAL PROPERTIES PROBLEM SOLUTIONS
Ohms Law Electrical Conductivity
18.1 This problem calls for us to compute the electrical conductivity and resistance of a silicon specimen. (a) We use Equations 18.3 and 18.4 for the conductivity, as
σ〓 Il 1 〓 〓 ρ VA Il d 2 Vπ 2
And, incorporating values for the several parameters provided in the problem statement, leads to
(0.25 A)(45 x 103 m) 7.0 x 103 m 2 (24 V)(π) 2 〓 12.2 (Ω - m)-1
σ 〓
(b) The resistance...
xxxxxx-1
CHAPTER xxxxxx
ELECTRICAL PROPERTIES PROBLEM SOLUTIONS
Ohm’s Law Electrical Conductivity
xxxxxx.1 This problem calls for us to compute the electrical conductivity and resistance of a silicon specimen. (a) We use Equations xxxxxx.3 and xxxxxx.4 for the conductivity, as
σ〓 Il 1 〓 〓 ρ VA Il d 2 Vπ 2
And, incorporating values for the several parameters provided in the problem statement, leads to
(0.25 A)(45 x 103 m) 7.0 x 103 m 2 (24 V)(π) 2 〓 12.2 (Ω - m)-1
σ 〓
(b) The resistance, R, may be computed using Equations xxxxxx.2 and xxxxxx.4, as
R〓 l 〓 σA l
d 2 σπ 2
〓
57 x 103 m
[
2 3 1 (π) 7.0 x 10 m 12.2 (Ω m) 2
〓 121.4 Ω
]
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재료공학과 과학 18장 연습문제 , 재료공학과 과학 18장 연습문제공학기술레포트 , 재료공학과 과학 18장 연습문제
다.
