Practice Exam 2 - Spring 2006

# Practice Exam 2 - Spring 2006 - PH2200 EXAM II INSTRUCTIONS...

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PH2200 EXAM II SPRING 2006 The following information applies to the first two questions. right end-cap Q Q + Positive and negative charges of equal magnitude lie along the symmetry axis of a cylinder. The distance from the positive charge to the left end-cap of the cylinder is the same as the distance from the negative charge to the right end-cap. 1. What is the electric flux through the closed cylinder? (A) 0 (B) / o Q ε + (C) 2/ o Q + (D) / o Q (E) None of the above. 2. What is the sign of the electric flux through the right end-cap of the cylinder? (A) positive (B) negative (C) There is no flux through the right end-cap. 3. An uncharged spherical balloon contains a positive charge at its center. As the balloon is inflated to a greater volume while the charge remains Q + expanding balloon at the center, does the electric flux through the surface of the balloon increase, decrease, or remain the same? What about the electric field strength on the surface of the balloon?
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Practice Exam 2 - Spring 2006 - PH2200 EXAM II INSTRUCTIONS...

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