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Quiz Questions on Electric and Magnetic Fields in a Long Cylindrical Resistor - Prof. Jame, Quizzes of Physics

Rensselaer Polytechnic Institute (RPI)Physics

Prof. James J. Napolitano

The questions from quiz #8 of phys4210 electromagnetic theory course, focusing on the electric and magnetic fields in a long cylindrical resistor. Students are required to determine the electric field magnitude, magnetic field direction, and calculate the energy dissipation rate using the given information.

Typology: Quizzes

2010/2011

Uploaded on 05/17/2011

koofers-user-zkp 🇺🇸

10 documents

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Download Quiz Questions on Electric and Magnetic Fields in a Long Cylindrical Resistor - Prof. Jame and more Quizzes Physics in PDF only on Docsity! Name: PHYS4210 Electromagnetic Theory Quiz #8 4 Apr 2011 This is a closed book quiz! You have thirty minutes to complete it. A long, cylindrical resistor with radius a and length b carries a steady current I. There is a potential difference V across the length of the resistor. The electric field in the resistor is a constant. Answer the fol- lowing in terms of V , I, a, and b. I a b (a) What is the magnitude of the electric field? (b) Draw the direction of the electric field on the diagram. (c) What is the magnitude of the magnetic field on the cylindrical surface of the resistor? (d) Draw the direction of the magnetic field on the cylindrical surface of the resistor. (e) What is the magnitude of S = (c/4π)E×B on the cylindrical surface of the resistor? (f) Draw the direction of S = (c/4π)E×B on the cylindrical surface of the resistor. (g) By integrating the energy flux vector over the surface of the resistor, find the rate at which energy appears in the resistor volume, i.e. the power P dissipated by the resistor.

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