Engineering, 12.12.2019 06:31 mgavyn1052
(a)compute the electrical conductivity of a cylindrical silicon specimen 7.0 mm (0.28 in.) diameter and 57 mm (2.25 in.) in length in which a current of 0.25 a passes in an axial direction. a voltage of 24 v is measured across two probes that are separated by 45 mm (1.75 )compute the resistance over the entire 57 mm (2.25 in.) of the specimen.
Answers: 3
(Ω-m)^{-1}
![\sigma = \frac{0.25 \times 45\times 10^{-3}}{24 \pi [\frac{7 \times 10^{-3}}{2}]^2}](/tpl/images/0414/9819/138b2.png)
(Ω-m)^{-1}[/tex]
![= \frac{57 \times 10^{-3}}{12.2 \times \pi [\frac{7 \times 10^{-3}}{2}]^2}](/tpl/images/0414/9819/028ba.png)
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(a)compute the electrical conductivity of a cylindrical silicon specimen 7.0 mm (0.28 in.) diameter...
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