1) A 100 km long high-tension power line is made of aluminum. It has a conductor that is 2.5 inches in diameter. Answer the following questions... • Determine the resistivity of the aluminum at 5°C • Determine the resistance of the power line. • Determine the current through the power line • Determine the power lost through the power line if it carries 400,000V

1) A 100 km long high-tension power line is made of aluminum. It has a conductor that is 2.5 inches in diameter. Answer the following questions... • Determine the resistivity of the aluminum at 5°C • Determine the resistance of the power line. • Determine the current through the power line • Determine the power lost through the power line if it carries 400,000V

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 9P

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. An electric car is being designed to have an average power output of 4,000 W for 2 h before needing to be recharged. (Assume there is no wasted energy.) (a) How much energy would be stored in the charged batteries? (b) The batteries operate on 30 V. What would the current be when they are operating at 4,000 W? (c) To be able to recharge the batteries in 1 h, how much power would have to be supplied to them?
DETAILS MY NOTES ASK YOUR TEACHER OSCOLPHYS2016 20.3.WA.019. A copper wire has a resistance of 0.505 13 at 20.0°C, and an iron wire has a resistance of 0.537 0 at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 x 10(c) and for iron it is 5.00 x 10(C)-¹, "C Additional Materials PRACTICE ANOTH
I Review | Constants A3.80 mm diameter wire carries a 15.2 A current when the electric field is 8.60x 10-2 V/m. Part A What is the wire's resistivity? p= 6.42x10-8 2m Submit Previous Answers Correct Correct answer is shown. Your answer 6.4167-10-8 = 6.4167x10-8 Qm was either rounded differently or used a different number of significant figures than required for this part. Part B If a battery voltage of 8.55 V is applied to this wire to produce this current, how long must it be? ? L= 994 Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
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ll Asiacell ? ÖS 2:41 @ %82 ) Bitti A docs.google.com AA True False 4. Electrical resistivity of any given metallic wire depends upon nature of the material. * True False 5. For a fixed supply voltage the current following through a conductor will increase when its area of cross section is reduced. * True False Page 3 of 4 Вack Next