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Sample Exam 1

# Sample Exam 1 - ENEE 380 Fall 2011 Sample Exam Problems 1...

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ENEE 380 Fall 2011 September 30, 2011 Sample Exam Problems 1. Two concentric thin spherical shells with radii a and b ( a > b ) are charged with surface charge densities and - , respectively. a) Calculate the electric potential at all regions. b) Determine the electric field at all regions. c) Calculate the force exerted by the inner spherical shell on the outer shell. d) Calculate the potential energy of this charge configuration. 2. A solid spherical dielectric (non-conducting) dielectric of radius R is uniformly charged with total charge Q . a) Calculate the total electric flux through the largest cubic surface that will fit entirely inside the sphere. b) Calculate the total electric flux through a cubic surface of side R with one of its corner located at the center of sphere. 3. A circular ring of charge of radius a and uniform charge density encircles a conducting sphere of radius b ( a > b ). The center of the ring coincides with the center of the sphere. Determine the charge density and location of the image charge for this configuration.

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Sample Exam 1 - ENEE 380 Fall 2011 Sample Exam Problems 1...

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