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a long coaxial cable carries a current I. The current flows down on the surface of the inner surface of a wire of radius a, and back along with the outer cylindrical shell of radius b.

a) What is the magnetic field 'B' between the two cylinders?

b) What is the magnetic energy stored in the section of length L?

 

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Tauseef Shaikh
Tauseef ShaikhLv10
26 Jan 2021
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

 A long coaxial cable consists of two thin walled concentric conducting cylinders with radii a and b. The inner cylinder carries a current I (out of page) and the outer provides the return path for that current. The current creates a magnetic field between the two cylinders.

Find: a) The magnetic flux density B between the conducting cylinders a? b) The magnetic energy density in the same region. c) The total energy for a length l of the cable is d) What is the energy stored per unit length of the cable if

Cross sectional view of the coaxial  cable 

 

A long hollow cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a current of 12 A distributed uniformly across its cross section. A long wire which is coaxial with the cylinder carries an equal current in the same direction. What is the magnitude of the magnetic field 3.0 mm from the axis?

Adapted from 22.37 in your book: A long coaxial cable consists of an inner cylindrical conductor with radius 1.00 mm and an outer coaxial conducting cylinder with inner radius 4.0 mm and outer radius 5.0 mm. The outer cylinder is mounted on insulating supports and has no net charge. The inner cylinder has a uniform charge per unit length of 1.0 C/m. a) Calculate the electric field in the space between the cylinders. b) Calculate the electric field outside the outer cylinder. c) What is the electric field in the interior of the outer cylinder? d) Find the charge per unit length on the inner surface and the outer surface of the cylinder.

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