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Unformatted text preview: . The area of the two plates A is large enough so that the fringe effect is negligible. The mass of each plate is m. The upper plate is allowed to move up and down, but not horizontally. The lower plate is fixed on the substrate. A +Q x +Q Figure 1 Calculate the charge Q necessary to keep the upper plate at rest. 4. Using the fact that E = kq (r 1 r 2 ) / r 1 r 2  3 , V = kq (1/ r 1 r 2 ), prove that E = 0 and E =  V. 5. Use Femlab to plot the magnitude of the Efield for the following two systems. The plates are assumed to be perfect conductors. ( a ) ( b )...
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This homework help was uploaded on 02/04/2008 for the course EE 151 taught by Professor Psaltis during the Spring '05 term at Caltech.
 Spring '05
 Psaltis
 Electromagnet

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