The resistance of the wire in the type used in telephone lines is (35 Ohms per kilometer), and the mass of the wire is (5 kilograms per kilometer). The resistivity of the wire material is (1.95 x 10-82 m). What is the cross-sectional area of the wire? What is the resistance of a pulley containing (8 Km) of other wire made of the same material, but its mass is (20 kilograms per kilometer)?

The resistance of the wire in the type used in telephone lines is (35 Ohms per kilometer), and the mass of the wire is (5 kilograms per kilometer). The resistivity of the wire material is (1.95 x 10-82 m). What is the cross-sectional area of the wire? What is the resistance of a pulley containing (8 Km) of other wire made of the same material, but its mass is (20 kilograms per kilometer)?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Besides lower electrical conductivity, suggest a reason why ruthenium is not used inelectrical transmission wires. Give a detailed response
The loads on a 300-meter ring distributor are depicted in figure 2.1 (a), where the distances are given in metres. Each conductor has a resistance of 0.20 per 1,000 metres, and the loads that are tapped off at points B, C, and D are as shown in the diagram. Determine the voltages at B, C, and D given that the distributor is fed at point A. 50 A 70 1 240 V A (a) 60 B 70 A 100 A 80 50 A 91A D T 41 A 220 V A (b) 129 A B 100 A 729 A 70 A
Reluctance of core material (R) Cross-sectional area (A) 1520 Number of turns FUCCE Fig. 6 Magnetic coil Flux (6) Length around core (1)
4. The tolerance of a black brown blue resistor is a. 1% b. 20% c. 10% d.5%
4- Which of these are types of normal stresses? a. Tensile and compressive stresses b. Tensile and thermal stresses c. Shear and bending 5- If a material has identical properties in all directions, it is called a. Elastic b. Plastic c. Isotropic d. Homogeneous 6- When a wire is stretched to double in length, the longitudinal strain produced in it is a. 0.5 b. 1.0 c. 1.5 d. 2.0
the depth of the solid core is 5 cm. Assume that the relative permeability of the core is 1000 and remains constant and that the current in the coll is 4 A. ignore the fringing effects at the air gap and find the following
A certain wire is having length of 68 m on a winter day when the temperature is -29 °C. How much longer (in mm) is the wire on a summer day when the temperature is 27 °C? (Consider a 14 x 10-5 (°C) 1, for the material of the wire)
Answer the question plus this additional part: In addition use this to find the numerical value of the capacitance per unit length of two long parallel wires, each with radius 1 mm, with their centers separated by 4 mm. Express your answer in picofarads per meter. You may assume the wires are perfect conductors. Question 2.52 is attached for reference:
Scenario: You work as a materials engineer and have been tasked with investigating issues with substandard cables manufactured by your company. These cables are made from copper with varying cross sectional areas depending upon their current carrying capacities. Cables are not meeting the required voltage drop characteristics compared to theoretical values, but your manager is not sure of the reason for this and has hypothesised that this could be due to impurities within the copper itself. It has been suggested that the resistivity of the copper used should be investigated. With reference to the attached samples picture: A) what is the actual resistance of the cable samples. given that you multiply the cross sectional area by strand number. B) what is the actual resistivity of each sample.
Given a magnetic circuit with a current 2.6A flowing through 205 turns of wire on a core having a reluctance of 125000 At/Wb. Determine the magnetomotive force of the circuit in base units.
A copper conductor has its specific resistance of 1.96 x 10^-6 ohms-m at 0 degree Celsius and a resistance temperature coefficient of 1/254.5 per degree Celsius at 35 degrees Celsius. Find the (a) the specific resistance and (b) the resistance – temperature coefficient at 90 degrees Celsius.
D5.4. A copper conductor has a diameter of 0.6 in. and it is 1200 ft long. Assume that it carries a total de current of 50 A. (a) Find the total resistance of the conductor. (b) What current density exists in it? (c) What is the de voltage between the conductor ends? (d) How much power is dissipated in the wire?