FUNDAMENTALS OF PHYSICS - EXTENDED
12th Edition
ISBN: 9781119773511
Author: Halliday
Publisher: WILEY
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Chapter 26, Problem 16P
Copper and aluminium are being considered for a high-voltage transmission line that must carry a current of 60.0 A. The resistance per unit length is to be 0.150 Ω/km. The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the magnitude J of the current density and (b) the mass per unit length λ for a copper cable and (c) J and (d) λ for an aluminium cable.
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Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 60.0 A. The resistance per unit length is to be 0.150 /km.The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the magnitude J of the current density and (b) the mass per unit length l for a copper cable and (c) J and (d) l for an aluminum cable.
Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 41.3 A. The resistance per
unit length is to be 0.103 Q/km. The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the
magnitude Jof the current density and (b) the mass per unit length A for a copper cable and (c) J and (d) A for an aluminum cable.
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A high voltage transmission line of diameter 2.55 cm and length 3.42167 km carries a steady current of 2 x103 A. If the conductor is copper with a free charge density of 7 x 1028 electrons/m3, how long (in seconds ) does it take one electron to travel the full length of the cable? (e = 1.6 x 10−19 C).For this problem use scientific/exponential notation to represent your answer.
Chapter 26 Solutions
FUNDAMENTALS OF PHYSICS - EXTENDED
Ch. 26 - The following table give the lengths of three...Ch. 26 - Three wires, of the same diameter, are connected...Ch. 26 - During the 4.0 min a 5.0 A current is set up in a...Ch. 26 - An isolated conducting sphere has a 10 cm radius....Ch. 26 - A charged belt, 50 cm wide, travels at 30 m/s...Ch. 26 - The United States National Electric Code, which...Ch. 26 - SSM WWW A beam contains 2.0 108 doubly charged...Ch. 26 - A fuse in an electric circuit is a wire that is...Ch. 26 - Prob. 8PCh. 26 - The magnitude Jr of the current density in a...
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