ch16hw4 - CH 16 HW 4 S2006 Page 1 of Logged in as...

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ebAssign.net onday, May 1, 2006 04:47 PM EDT Logged in as [email protected] Logou ome | My Assignments | Grades | Communication | Calendar Guide | Help | My Option Home > My Assignments > CH 16 HW 4 S2006 (Homework) WEBB WILLIAM CHAD PY 208, section 001, Spring 2006 Instructor: Albert R. Young North Carolina State University About this Assignment Due: Monday, February 13 , 2006 07:30 AM EST Current Score: 29 out of 29 Question Score Submissions Made: 5 out of 5 Submission Options Description Potential at a location ; potential differences in regions with varying fields; potential and field inside an insulator iew: All esponses otes pts 1 2/2 2 2/2 4/4 1. A highly charged piece of metal (with uniform potential throughout) tends to spark at places where the radius of curvature is small, or at places where there are sharp points. The breakdown electric field strength for air is about 3 10 6 V/m. (a) What is the maximum possible potential of a metal sphere of 8 cm radius in air? (That is, what is the potential at the surface of the sphere, relative to infinity?) 2.4e5 [2.40e+05] volts (b) What is the maximum possible potential of a metal sphere of only 0.2 mm radius? 600 [600] volts Solution or Explanation: At the surface of the sphere, E = 3e6 V/m. Solve for q, then find V at the surface of the sphere. iew: All esponses otes pts 1 2/2 2 2/2 3 1/1 4 1/1 5 2/2 8/8 2. Page 1 of H 16 HW 4 S2006 5/1/200 ttp:[email protected][email protected] PDF created with pdfFactory Pro trial version
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Figure 16.70
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This homework help was uploaded on 03/19/2008 for the course PY 208M taught by Professor Chabay during the Spring '08 term at N.C. State.

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ch16hw4 - CH 16 HW 4 S2006 Page 1 of Logged in as...

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