Solution-Coaxial conducting tube of radius

Coaxial conducting tube of radius

Reference no: EM131322027

An alternating current I = I_0 cos(ω t) flows down a long straight wire and returns along a coaxial conducting tube of radius a.

(a) In what direction does the induced electric field point?

(b) Assuming that the E-field is zero outside of the conducting tube find E(s,t).

(s: radial coordinate in cylindrical coordinates, distance from inner wire)

(d) Find the total displacement current Id

(e) Compare the ratio of Id and I. If a=1mm, how high would the frequency ω have to be for Id to be 1% of I?

Reference no: EM131322027

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Coaxial conducting tube of radius

Reference no: EM131322027

Reference no: EM131322027

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