Physics

posted by .

A certain coaxial cable consists of a copper wire, radius a , surrounded by a concentric copper tube of inner radius c . The space between is partially filled (from b out to c ) with material of dielectric constant K. The goal of this problem is to find the capacitance per unit length of this cable. You may neglect edge effects.

Note that for technical reasons, we use the symbol l for charge per unit length, rather than the more typical λ . Do not get confused, l is not a length!

Calculate the radial component of the electric field in the region a<r<b . Express your answer in terms of a , b , c , K , l , r , and epsilon_0

Calculate the radial component of the electric field in the region b<r<c . Express your answer in terms of a , b , c , K , l , r , and epsilon_0
unanswered

(b) What is the potential difference V(b)-V(a) (be careful about sign)? Express your answer in terms of a , b ,c ,K , l and epsilon_0

unanswered



What is the potential difference V(c)-V(b) (be careful about sign)? Express your answer in terms of a ,b , c , K , l and epsilon_0
unanswered



What is the magnitude of the potential difference |V(c)-V(a)| ? Express your answer in terms of a , b , c , K ,l and epsilon_0
unanswered



(c) What is the capacitance per unit length? Express your answer in terms of a, b , c , K , l and epsilon_0

  • Physics -

    Please some one answer.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    The inner conductor of a coaxial cable has a radius of 0.900 mm, and the outer conductor's inside radius is 5.00 mm. The space between the conductors is filled with polyethylene, which has a dielectric constant of 2.30 and a dielectric …
  2. science

    a)A dielectric in the shape of a thick-walled cylinder of outer radius R1 = 5.15 cm, inner radius R2 = 3.65 cm, thickness d = 3.95 mm, and dielectric constant κ = 3.87 is placed between the plates, coaxial with the plates, as …
  3. physics

    a)A dielectric in the shape of a thick-walled cylinder of outer radius R1 = 5.15 cm, inner radius R2 = 3.65 cm, thickness d = 3.95 mm, and dielectric constant κ = 3.87 is placed between the plates, coaxial with the plates, as …
  4. physics

    A dielectric in the shape of a thick-walled cylinder of outer radius R1 = 5.15 cm, inner radius R2 = 3.65 cm, thickness d = 3.95 mm, and dielectric constant κ = 3.87 is placed between the plates, coaxial with the plates, as shown …
  5. physics

    he question is: A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs, surrounded by a dielectric material with er = 1.8 out to a radius of 1.2mm, then an outer spherical non-conducting …
  6. Physics

    A cylindrical aluminum pipe of length 1.52 m has an inner radius of 2.20 10-3 m and an outer radius of 3.00 10-3 m. The interior of the pipe is completely filled with copper. What is the resistance of this unit?
  7. Physics

    A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a current I0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with …
  8. physics

    Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer …
  9. physics HELP

    Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer …
  10. physics

    A copper cable is to be designed to carry a current of 280A with a power loss of only 2.70W/m. What is the required radius of the copper cable?

More Similar Questions