Spring04P001

# Spring04P001 - Spring 2003 EE 3320 100 points Date Monday...

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Unformatted text preview: Spring 2003 EE 3320 100 points Date: Monday, March 31, 2003 Credit will on] be iven if work su orts answer. Include units where appropriate and box all numerical answers. 1. (20‘pts)At the south pole the ice can get extremely thick. If you probe the ice for an object buried 1 kilometer deep with a 1 megahertz radar (EM wave) and assume that you can accurately probe down to only %0 of a penetration depth, would your search be successful? Show your reasoning in an explicit 0‘6—3— and slice =4.2£o, nice =u0. How m would this maigvimum probe depth change if thp frequency is increased?7, ﬂ: - l0 ’ [0‘ i . -3" 44 .9 #16, [W 4—1-1"??? 10"" ' L}3.<§~I0"’ ’ L, ‘3 ,0 I ' dp: £2§FZA ”" ﬁn \ / _ ﬁdi’; I.O‘l"l03m / €th ioqom \ i000 m} ‘Hﬁf 350,16“ avid, e gurcrg:g§v) 2. (5 pts) If in a certain medium the magnitude of the conduction current density is 1% and the mathematical way. Assume a conductivity for the ice of 1 €4.38: swat W 977470 ‘4 6w ,~ w 114;) vase :0 > ; 263.85 103m magnitude of the displacement current density is 0.11%n , calculate the loss tangent. Is this a highly conductive or slightly conductive medium? ...
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