A solenoid is made of N = 3500 turns, has length L = 25 cm, and radius R = 1.7 cm. The magnetic field at the center of the solenoid is measured to be B = 4.5 x 10-1 T. 1. What is the current through the wires of the solenoid? Write your equation in terms of known quantities. 2. Find the numerical value of the current in milliamps

A solenoid is made of N = 3500 turns, has length L = 25 cm, and radius R = 1.7 cm. The magnetic field at the center of the solenoid is measured to be B = 4.5 x 10-1 T. 1. What is the current through the wires of the solenoid? Write your equation in terms of known quantities. 2. Find the numerical value of the current in milliamps

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 80AP: The current density in the long, cylindrical wire shown in the accompanying figure varies with...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

A solenoid is made of N = 3500 turns, has length L = 25 cm, and radius R = 1.7 cm. The magnetic field at the center of the solenoid is measured to be B = 4.5 x 10^-1 T.

1. What is the current through the wires of the solenoid? Write your equation in terms of known quantities.

2. Find the numerical value of the current in milliamps.

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