It is desired to construct a solenoid that will have a resistance of 4.80 N (at 20°C) and produce a magnetic field of 4.00 x 10-2 T at its center when it carries a current of 3.90 A. The solenoid is constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 x 10-8 n. m.) (a) the number of turns of wire needed to build the solenoid turns (b) the length the solenoid should have cm

It is desired to construct a solenoid that will have a resistance of 4.80 N (at 20°C) and produce a magnetic field of 4.00 x 10-2 T at its center when it carries a current of 3.90 A. The solenoid is constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 x 10-8 n. m.) (a) the number of turns of wire needed to build the solenoid turns (b) the length the solenoid should have cm

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 52P: A solenoid is 40 cm long, has a diameter of 3.0 cm, and is wound with 500 turns. If the current...

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Consider a solenoid that is very long compared with its radius. Of the following choices, what is the most effective way to increase the magnetic field in the interior of the solenoid? (a) double its length, keeping the number of turns per unit length constant (b) reduce its radius by half, keeping the number of turns per unit length constant (c) overwrap the entire solenoid with an additional layer of current-carrying wire
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