- A 1 40 M Cylindrical Rod Of Diameter 0 550 Cm Is Connected To A Power Supply That Maintains A Constant Potential Differe 1 (87.51 KiB) Viewed 39 times
A 1.40 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential differe
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A 1.40 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential differe
A 1.40 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential difference of 13.0 V across its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0 °C) the ammeter reads 18.4 A, while at 92.0 °C it reads 17.4 A. You can ignore any thermal expansion of the rod. Part A Find the resistivity and for the material of the rod at 20 °C. P= 1.20x10-5 N·m Submit Previous Answers Correct Part B Find the temperature coefficient of resistivity at 20 °C for the material of the rod. α= Submit —| ΑΣΦ Previous Answers Request Answer ? (°C) -¹