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Lo = 2m²
α = 9x10⁻⁶ C
ΔT = 20 C
ditanyakn : L ?
dijawab :
L = Lo (1 + β x ΔT)
= 2 (1 + (2x9x10⁻⁶) x 20)
= 2 (1 + 18x10⁻⁶ x 20)
= 2 (1+36x10⁻⁵)
= 2,00072 m²