P27_051.PDF

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Chapter 27 - 27.51
51. We use Eq. 27-17: ρ
ρ 0 = ρα ( T
T 0 ), and solve for T :
T = T 0 + 1
α
ρ
ρ 0
1 =20 C+
1
58Ω
50 Ω
1 =57 C .
4 . 3
×
10 3 / K
We are assuming that ρ/ρ 0 = R/R 0 .
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