EE101hw5 - EE101 Homework#5 Engineering Electromagnetics Winter 2010 D u e W e d n es d a y F e b 17 2 00 P M Hand in to the TA at beginning of

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Page 1 of 2 EE101 Engineering Electromagnetics Winter 2010 2/9/10 Homework #5 Du e : W e dn e s day F e b 17 2:00 PM Hand in to the TA at beginning of class. No late homework is accepted (see grading policy posted on web). If you cannot make it to class, you must slip the HW under my door before the due time. Probl e m #1 (40 points) Image Theory for Magnetic Field In this problem, we wish to use image theory to consider an AC current ˆ I I z flowing in a wire of radius a above a perfectly conducting ground plane at distance d ( ). This is shown, along with the B-field, in the Figure below. For the DC case, conductors have no magnetic properties, and the magnetic field would extend through the ground plane as if it wasn’t there (even for an excellent conductor like copper). However, in a perfect conductor (such as a superconductor), changing magnetic fields induce eddy currents in the metal according to Faraday’s Law which result in B-field being zero inside the metal. Therefore, the following boundary conditions hold
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This note was uploaded on 03/26/2010 for the course EE 190408200 taught by Professor Ozcan during the Winter '09 term at UCLA.

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EE101hw5 - EE101 Homework#5 Engineering Electromagnetics Winter 2010 D u e W e d n es d a y F e b 17 2 00 P M Hand in to the TA at beginning of

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