Posted by **P** on Wednesday, March 13, 2013 at 12:10am.

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 -
**Anonymous**, Wednesday, March 13, 2013 at 8:51am
Please some one answer.

## Answer this Question

## Related Questions

- Physics - The inner conductor of a coaxial cable has a radius of 0.900 mm, and ...
- Physics - A cylindrical aluminum pipe of length 1.52 m has an inner radius of 2....
- physics - A copper cable is to be designed to carry a current of 280A with a ...
- Physics - A long coaxial cable consists of two concentric conductors. The inner ...
- physics HELP - Consider a coaxial cable with 2Amps in the center conductor ...
- physics - Consider a coaxial cable with 2Amps in the center conductor coming out...
- physics - Consider a coaxial cable with 2Amps in the center conductor coming out...
- physics - Consider a coaxial cable with 2Amps in the center conductor coming out...
- Chemistry - If the copper is drawn into wire whose diameter is 9.50 , how many ...
- physics - A copper wire has a circular cross section with a radius of 3.75 mm. ...