test2_versionD

test2_versionD - McGill University Faculty of Engineering...

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. Mc Fa Name: Student Date: INSTRU This Only The t quest Each You w The q There No ad Duri autom Please cGill Univ culty of E ID: ____ 12 TH UCTIONS: is a CLOSE the FACUL test consists tion. Please s question is will get zero questions ma efore, please dditional inf ng this test, matically le e do not t versity ngineerin ________ November ED BOOK t LTY STAND of sixteen m select the rig worth 5 poin o for any una ay be compl e use your tim formation wi , any discus ad to zero s turn to th g 2008 est. DARD CAL multiple-choi ght answers. nts. You wil answered qu eted in any o me wisely. ill be provid sions with o scores for al he next p 1 ECSE 3 FALL 2 Time LCULATOR ice-questions l lose 1 poin uestion. order. Some ed during th other studen ll parties inv page unti d 352: Electro 2008, CLAS e: 15:35 R may be us s. Five choic nt for each w questions m he test. nts are cons volved. l you are omagnetic W SS TEST 2 – 16:25 (50 sed. ces are provi rong choice ay be easier idered chea e instruct aves minutes) ided for each e. r than others ating and wi ted to do h s. ill so.
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2 1. Which of the following statements are true for signal transmission in a conductor? BD A) There exists a skin depth such that all of the wave amplitude is confined within the skin depth. B) The H-field and E-field are generally out of phase. C) A conductor with a high loss tangent will also have a large skin depth. D) The skin depth of a conductor is directly proportional to the signal wavelength. E) The effective resistance of conductors tends decrease with the increase of frequency. 2. You need to make an antireflection coating on a substrate which has an impedance of 2 Ohms, where the incident medium has an impedance of 8 Ohms. Which statement represents the correct conditions for the impedance and thickness of the coating layer? BE A) Impedance=16 Ohms, Thickness=1/4 wavelength in vacuum B) Impedance=4 Ohms, Thickness=3/4 wavelength in coating C) Impedance=4 Ohms, Thickness=1/8 wavelength in coating D) Impedance=4 Ohms, Thickness=1/2 wavelength in vacuum E) Impedance=4 Ohms, Thickness=1/4 wavelength in coating 3. A uniform plane wave is incident from air onto glass (refractive index = 1.45) at an angle from the normal of 45°. The incident wave is right circularly polarized. It is also known that the reflection coefficients for the p-polarized and s-polarized waves are -0.144 and -0.222, respectively. Which of the following statements are true? DE A) The fraction of power transmitted is 93%. B) The fraction of power reflected is 36.6%.
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This note was uploaded on 02/14/2011 for the course ECSE 352 taught by Professor Mi during the Fall '10 term at McGill.

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test2_versionD - McGill University Faculty of Engineering...

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