Solutions to Quiz2 - ENEE 380 Fall 2011 Discussion Quiz 2...

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ENEE 380 Fall 2011 September 9, 2011 Discussion Quiz 2 1. Griffiths Problem 2.6: Find the electric field a distance z above the center of a circular disk of radius R which carries a uniform surface charge . (Hint: Use the result in Problem 2.5 for the electric field of a circular line charge. Replace the line charge density with dr’ .). Useful integral:  3 22 2 1 r'dr' zr ' '  . 2. Griffiths Problem 2.15: A hollow spherical shell carries charge density 2 k r in the region arb  . Find the electric field in the region  . 3. Using the electric field derived in problem 2, calculate the electric potential in the region . Use the following relation,    r b Vr Vr b d El  where Vr b is the potential at rb calculated using the electric potential for from the example.
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Problem 1. The charged circular disk can be broken into circular rings with radius °′ varying from 0 to ? and width of ±°′. The electric field generated by each ring is given by the result in the
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This note was uploaded on 02/02/2012 for the course ELECTRICAL ENEE380 taught by Professor D.romeo during the Fall '11 term at Maryland.

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Solutions to Quiz2 - ENEE 380 Fall 2011 Discussion Quiz 2...

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