- Part A A Copper Transmission Cable 160 Km Long And 10 5 Cm In Diameter Carries A Current Of 115 A For Related Problemso 1 (51.37 KiB) Viewed 23 times
- Part A A Copper Transmission Cable 160 Km Long And 10 5 Cm In Diameter Carries A Current Of 115 A For Related Problemso 2 (45.79 KiB) Viewed 23 times
Part A Find the resistivity for the material of the rod at 20.0°C. Express your answer in ohm-meters. A 1.30 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential difference of 15.0 V across its ends, while an ammoter measures the current through it. You observe that at room temperature (20.0°C) the ammeter reads 18.5 A, whilo at 02.0°C it ronds 17.2 A. You can ignore any thermal expansion of the rod. For related problem solving tips and strategies, you may want to view a Video Tutor Solution of Temperaturo dependence of resistance VOI ΑΣΦ ? pe n.m Submit Request Answer Part B Find the temperature coefficient of resistivity at 20.0°C for the material of the rod Express your answer In reciprocal degrees Celsius to two significant figures να] ΑΣΦ και ? (°C) Submit Request Answer