Consider a straight cylindrical wire of radius a and length L and resistance R = L/raʻo, where o is the electrical conductivity of the material. A steady and uniform current I circulates through the wire. (a) Calculate the electric field E at the interior of the wire. (b) Calculate the magnetic field B at the interior of the wire. (c) Calculate the poynting vector S at the interior of the wire. (d) Prove that S. dā = –I²R s: exterior surface of the wire
Consider a straight cylindrical wire of radius a and length L and resistance R = L/raʻo, where o is the electrical conductivity of the material. A steady and uniform current I circulates through the wire. (a) Calculate the electric field E at the interior of the wire. (b) Calculate the magnetic field B at the interior of the wire. (c) Calculate the poynting vector S at the interior of the wire. (d) Prove that S. dā = –I²R s: exterior surface of the wire
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Transcribed Image Text:Consider a straight cylindrical wire of radius a and length L and resistance R = L/ra*o,
where o is the electrical conductivity of the material. A steady and uniform current I
circulates through the wire.
(a) Calculate the electric field E at the interior of the wire.
(b) Calculate the magnetic field B at the interior of the wire.
(c) Calculate the poynting vector S at the interior of the wire.
(d) Prove that
|5. dā = -I²R s: exterior surface of the wire
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