Answered: Two power lines, line 1 and line 2,…

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...

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Two power lines, line 1 and line 2, both of length LL = 62 m, are strung east-west between two towers. line 1 is r12 = 2.8 m directly above line 2. The current in both power lines is IL = 75 A to the west. Assume the power lines are straight and you can use the approximation r12 << LL. Part (a) Find the magnitude of the magnetic field B21, in teslas, produced by line 1 at line 2. Part (b) What is the direction of the magnetic field produced by line 1 at line 2? 1. Up. 2. East. 3. South. 4. Down. 5. North. 6. West. Part (c) Calculate the magnitude of the magnetic force F21, in newtons, that the current in line 1 exerts on line 2. Part (d) Assume a typical power line has a mass of 890 kg per 1000 m. How many times larger would the current in both lines have to be for the magnetic force on the line to balance the force of gravity?

Randomized Variables
LL = 62 m
r12 = 2.8 m
L = 75 A
%3D

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