Unformatted text preview: current carrier. c) Calculate the force by using the gradient of U int . You can save yourself alot of work using the easiest form for U int . d) Show that the solution can be obtained by using a ﬁnite number of image currents. and ﬁnd the magnitude, position and direction of the image currents. 2) In JDJ chapter 6, show that the sum of 6.27 and 6.28 yield J ( r ,t). 3) JDJ 61 4) JDJ 62 a,b 5) Find the force on a plate of a parallel plate capacitor with charge/area = ± σ on top and bottom plates using the momentum stress tensor. Check you answer with the result in your notes. 1...
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 Spring '10
 Blecher
 Current, Magnetism, Force, Work, Magnetic Field, Electric charge

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