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Unformatted text preview: notion of angular momentum conservation, what can you infer about electromagnetic Felds? 4. Purcell 7.28: Crude estimate of magnetic Feld decay in the earth (15 pts). 5. Self inductance per unit length of coaxial conductors (15 pts). A transmission line consists of a pair of nested, long cylindrical tubes with radii R 1 and R 2 : I I R R 1 2 The current I ±ows up the outer tube and down in the inner tube; these currents are uniformly distributed over their respective surface. Compute the self inductance per unit length of this conFguration. Hint: make life easy for yourself and do so using magnetic energy....
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This homework help was uploaded on 04/11/2008 for the course PHYSICS 8.022 taught by Professor Hughes during the Spring '08 term at MIT.
- Spring '08