Question

The coaxial cable consists of two thin, tubular conductors, the inner of radius a and the...

The coaxial cable consists of two thin, tubular conductors, the inner of radius a and the outer of radius b. Current I flows out along one conductor and back along the other.

Part A

Find the total energy per unit length of the cable.

Express your answer in terms of the variables μ0, I, b, and a.

U/l =

nothing

SubmitRequest Answer

Part B

Use the expression U=1/2LI^2 to find the inductance per unit length.

Express your answer in terms of the variables μ0, b, and a.

L/l =

nothing

SubmitRequest Answer
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Homework Answers

Answer #1

Use the formula of magnetic energy density and from this solve for the magnetic energy per unit length. For part (b) use part (a) for inductance per unit length

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