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Lo= 200 cm
Δt= 100-0= 100°C
ΔL= 200,24-200= 0,24 cm
Dit:
α=..?
Penye:
α= ΔL/(Lo.Δt)
α= 0,24/(200×100)
α= 0,24/20000
α= 0,000012 /°C