2011_midterm.pdf

2011_midterm.pdf - MID-TERM TEST DEPARTMENT COURSE NO PHYS...

• Test Prep
• nonamer20000000000000
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October 25, 2011 MID - TERM TEST DEPARTMENT & COURSE NO.: PHYS 2600 PAGE NO.: 1 of 1 TIME: 1.25 hours EXAMINATION: Electromagnetic Theory EXAMINER: S.A. Page Instructions: Answer all questions. Be as concise as possible with descriptive answers. Define variables clearly with reference to a labeled diagram, and state all assumptions at the start of each problem. Ask for assistance if you require a formula that is not explicitly provided on the sheet. 1. Electric Fields: a) What is an electric field ? (keep your answer brief!) b) Sketch the source and distribution of electric field lines for: i.) a negative point charge ii) an electric dipole iii) an arbitrarily-shaped piece of uncharged conducting material, sitting midway between two very large, uniform planar sheets of opposite charge 2. Uniform charge sheets: a) Use Gauss’ law to derive an expression for the electric field E G due to a very large, uniform planar sheet of charge, with surface charge density σ , noting any symmetry assumptions that you make in order to arrive at your solution.
• Fall '17
• Dr
• Magnetic Field, Electric charge, Fundamental physics concepts

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