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PHYS4210 Quiz: Electromagnetic Theory - Prof. James J. Napolitano, Quizzes of Physics

Rensselaer Polytechnic Institute (RPI)Physics

Prof. James J. Napolitano

A closed-book quiz on the topic of electromagnetic theory for the university course phys4210. The quiz includes questions on the force between charges, the relationship between charge, magnetic fields, and speed, and the definition and units of conductivity.

Typology: Quizzes

2010/2011

Uploaded on 05/17/2011

koofers-user-zsa 🇺🇸

10 documents

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Download PHYS4210 Quiz: Electromagnetic Theory - Prof. James J. Napolitano and more Quizzes Physics in PDF only on Docsity! Name: PHYS4210 Electromagnetic Theory Quiz 19 April 2010 This is a closed book quiz! Write the best choice in the space next to the question. 1. Two identical charges q are placed 2 cm apart. The force between them is 2 dynes. The value of q is A. 1 esu. B. √ 2 esu. C. 2 esu. D. 2 √ 2 esu. E. 4 esu. 2. A charge of 1 esu moves perpendicularly through a magnetic field of 10, 000 gauss and feels a force of 1 dyne. Its speed is what fraction of the speed of light? A. 1/10000 B. 1/1000 C. 1/100 D. 1/10 E. 1 3. Conductivity σ is defined by the relation j = σE where j is the current density, i.e. current per unit area, and E is the electric field. In the CGS system, the units of conductivity are the same as A. seconds. B. 1/seconds. C. cm. D. 1/cm. E. 1/ohms.

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PHYS4210 Quiz: Electromagnetic Theory - Prof. James J. Napolitano, Quizzes of Physics

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