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vants to use a solenoid she found on a car starter. If the solenoid is 0.124 m long and has 845 what current is required to produce a magnetic field of 1.83 x 10-4 T?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 104CP: A particle’s path is bent when it passes through a region of non-zero magnetic field although its...

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Question

#2 please

Chapter 18
PHYS 203: Fundamentals of Physics
Magnetism
Key Concepts:
• Magnetic fields
• Current induction of magnetism
• Ampere's Rule: B =
2n R
TOT
Reinforcement:
1. What would be the magnitude of an induced magnetic field from a transmission line 3.3 m above the point of
measurement if the current it carries is 783 A?
2. A mechanic wants to use a solenoid she found on a car starter. If the solenoid is 0.124 m long and has 845
turns of wire, what current is required to produce a magnetic field of 1.83 x 10-4 T?
3. Find the current in a wire with the a magnetic as defined: B = 4.29 x 10-5 T, R = 1.4m
4. If a surveyor is 10.5 m below a a west-to-east running transmission line carrying 843 A, what would be the error
in the angular measurement if the earths magnetic field is found to be B = 3.3x10-4 Teast+2.45x10-4 Tnorth?
1.

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