A coaxial cable consists of a long cylindrical copper wire of radius r1 surrounded by a...

A coaxial cable consists of a long cylindrical copper wire of radius r1 surrounded by a cylindrical insulating shell of outer radius r2 . A final conducting cylindrical shell of outer radius r3 surrounds the insulating shell. The wire and conducting shell carry equal but opposite currents I uniformly distributed over their volumes. What is the current density j(r) for all r? Find formulas for the magnetic field in each of the regions.

Expert Solution

genius_generous answered 2 years ago

A very long coaxial cable consists of a solid cylindrical inner conductor of radius 3.8mm ,...

A very long coaxial cable consists of a solid cylindrical inner conductor of radius 3.8mm , surrounded by an outer cylindrical conductor with inner radius 7mm , and outer radius 9.3mm . The region between the two conductors is filled with a waxlike insulating material to keep the conductors from touching each other. The inner conductor carries a current 4.65A , into the page, while the outer conductor carries a current 4.6A , out of the page. Part A Use...

) A coaxial cable consists of a cylinder of radius ? surrounding by a thin cylindrical...

) A coaxial cable consists of a cylinder of radius ? surrounding by a thin cylindrical shell of radius 2?. Suppose the cable is along the ?-axis. The current density in inner cylinder is ? ⃗= (?0 + ??)?̂, where ?0 > 0 and ? > 0 are constant. The current in the outer shell, ?? ,is downward (−? direction). a) Find the magnetic field in regions 0 < ? < ?,? < ? < 2? and 2? < ?....

Consider an infinitely long, straight coaxial cable consisting of a homogeneous cylindrical center conductor with radius...

Consider an infinitely long, straight coaxial cable consisting of a homogeneous cylindrical center conductor with radius a and a surrounding conductive tube (shield) with inner radius b. The space between the center conductor and the screen is filled with a dielectric with er (epsilon r) = 1. In the inner conductor, a direct current I is distributed evenly over the cross section. In the outer conductor there is a corresponding return current. On the surface of the inner conductor there...

Coaxial cable. The inner cable has a radius R1 and carries D, a current per cross...

Coaxial cable. The inner cable has a radius R1 and carries D, a current per cross sectional area. The outer cable is a sheath cable, very thin, and carries an equal total current but in the opposite direction at a radius R2. There is a spacer between the two cables and a rubber coating on the outside for safety purposes. (Give answers in terms of R1, R2, D, and universal constants, plus r only when specified) a) Determine the total...

A coaxial cylindrical conductor with outer radius R2 and inner radius R1 and has dielectric Er...

A coaxial cylindrical conductor with outer radius R2 and inner radius R1 and has dielectric Er relative dielectric between the conductor. Is the charge per unit length on the Anner cylinder is lemda, find (a) D, E for a <r<b ( (b) potential difference between the conductors (c) the capacitance per unit length.

Consider a cylindrical coaxial cable. The center conductor is solid with radius R, while the outer...

Consider a cylindrical coaxial cable. The center conductor is solid with radius R, while the outer conductor is hollow with inner radius a and outer radius b, Both conductors have the same total current I (of uniform current density), but moving in the opposite direction of each other. Find the magnitude of the magnetic field as a function of r (where r=0 at the central axis) in the interval a is less than or equal to r is less than...

A coaxial cable has length d, inner wire radius a and outer shell radius b. You...

A coaxial cable has length d, inner wire radius a and outer shell radius b. You can regard its capacitance and inductance to be in series. If charge +q is placed on the inner wire with −q on the outer shell, how much time will elapse before you will find −q on the inner wire and +q on the outer shell?

A coaxial cable consists of alternating coaxial cylinders of conducting and insulating material. Coaxial cabling is...

A coaxial cable consists of alternating coaxial cylinders of conducting and insulating material. Coaxial cabling is the primary type of cabling used by the cable television industry and is also widely used for computer networks such as Ethernet, on account of its superior ability to transmit large volumes of electrical signal with minimum distortion. Like all other kinds of cables, however, coaxial cables also have some inductance that has undesirable effects, such as producing some distortion and heating.Consider a long...

A long coaxial cable with a radius s carries a uniform line charge Q on its...

A long coaxial cable with a radius s carries a uniform line charge Q on its inner conductor and a uniform surface charge -Q on its outer conductor. a) Sketch the situation including the electric field E inside and outside the cable. b) Find the electric field inside and outside the cable. c) Plot |E| as a function of the radius s.

A coaxial cable, commonly used in telecommunications, is a cylindrical capacitor. A given cable section has...

A coaxial cable, commonly used in telecommunications, is a cylindrical capacitor. A given cable section has a capacitance per unit length c0 [uF / m], length L0 [m] and relative electrical permittivity k0 []. It is decided to modify the cable in such a way that the external radius doubles, all other dimensions and materials remain the same. Calculate the new value of the capacitance per unit length. Calculate the answer algebraically and evaluate for the following values. Write your...

Question