Quiz 6 Solution

# Quiz 6 Solution - ECE3025 Summer 2011 Quiz 6 1(2 points Is...

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Unformatted text preview: ECE3025, Summer 2011, Quiz 6 June 30, 2011 1. (2 points) Is the skin depth smaller for waves with frequency of 10 GHz or with frequency of 1 GHz? g 554/16445 “L 50 if (‘5 S/Wﬂ/i/(r hf J? 2. (6 points) Use the point form of Ohms Law and the Ampere-Maxwell Law to derive the real and imag— inary relative permittivity of a material. a r; .3 it 1 L f X”: ﬂ. ‘Wég J I’M/pr’lq-y V J :a J ﬂ“?! .2; _ .f'Ldé— 3. (2 points) Where does electromagnetic energv go when it is absorbed by a material? ‘; bfmmcs AM 7: v _ ' ‘ ‘ -_\ \ an 14mm 3.7L (’5 ‘4 ﬁ/s» fcfoﬁml/ “BL, l6” 4/47 “/ 95° KIWI”? -i w y 1 f'mba h/ﬂﬂ TI/Ij 9 4. (2 points) For a plane wave, What is the relationship between the direction of propagation, the direction of the electric ﬁeld, and the direction of the magnetic field? " \_—* AA 5 K i _ I .%(d5(% [25: 2 P 5i”(¢?€9‘n LﬂffAI/J’IJ f i”le E? ﬂirng 2;; gﬂﬂ/ {iv/"c {0924/} 646-6 after”, 5. (13 points) Given that E :3 cos (101m) sin (6n x 10% — 62)) in empty space, ﬁnd 3 and ,6. H: VM: K‘ *2; F x r r ’\ ‘9‘ ‘WM A g—Jﬂ—éﬁy 737; ")WM 2 35, “Ti /\ A ﬂag (I 7<Jr 2 w W .Juj/ul (,~w_;()cw 6') 2m; ME? 65*) '1 (TWOUWé 5’ (psxoﬁx)5m(ﬁr57f~ﬂz) art-17F?" (\$569713) sag/gwé‘f‘f’ﬂ) jwwg W ﬂ i” "§"/.”H 596()¢TX)F’6(£1£€ZL’ €1"/)2)2¢ .z “j’nszﬂpﬂﬂ cwe/éWE7f’§7=L//£)Z , [tin ﬁmﬂ/il‘y 6mm; Ff wan ...
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