Tuesday, October 07, 2008

8 02 25

1/2 = \int_{one-cycle} cos^2 \theta d \theta ... "time averaged cos squared"
L \def \phi /over I.  Ferro magnetic material increase \phi while I is kept constant. -> L goes  up by definition.


Lec 25 | MIT 8.02 Electricity and Magnetism, Spring 2002

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