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A 1.50-m long cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a constant potential difference of 15 V
A 1.50-m long cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a constant potential difference of 15 V across its ends, while an ammeter measures the current through it. We observe that at room temperature (20.0C) the ammeter reads 18.5 A, while at 92.0C it reads 17.2 A. (15 pts) Assume we want to know the values of ?,, ?, at 0C: = ?,[1 + ?(T T)] -> 1.06135x10-5= ?0c [1 + ? c(20)] ? 92 = ? [1 + ?(T T)] -> 1.1416 x10-5 = ? 0c[1 + ? 0c(92)] (Eq. 1) (Eq. 2)
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