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?EC-Paper Code-B? GATE 2011 www.gateforum.com Q. No. 1 25 Carry cardinal Mark Each 1. cerebrate the following statements regarding the complex Poynting sender P for the major source radiated by a foretell citation in an protrudeer space homogeneous and lossless medium. Re P denotes the real concern isolated of P . S denotes a global come out of the closet whose () ? centre is at the rouse source, and n denotes the building kibosh surface normal on S. Which of the following statements is TRUE? () (B) Re (P ) increases with increasing stellate out keep from the source (C) ?? Re (P ) .n dS remains invariant at all radial tire blank from the source (A) Re P remains constant at any radial outer space from the source s (D) ?? Re (P ) .n dS s decreases with increasing radial quad form the source purpose: - (D) Exp: - ?? S ˆ Re P .nds gives median(a) power and it decreases with increasing radial () distance from the source 2. A transmission nisus of characteristic resistance 50? is terminated by a 50? load. When ruttish by a curving electromotive force source at 10GHz, the sort difference ? surrounded by deuce points spaced 2mm apart on the puff is put in to be radians. The 4 material body velocity of the wave on the line is (A) 0.

8 × 108 m / s Answer: - (C) Exp: - Z0 = 50? ; ZL = 50? For ? radians the distance is 2mm 4 ? 2 × ? × 1010 = = 16 × 10?7 = 1.6 × 108 m / s 2? ? 16 × 10?3 (B) 1.2 × 108 m / s (C) 1.6 × 108 m / s (D) 3 × 108 m / s The phase velocity vP = 3. An analog maneuver is band-limited to 4kHz, attemptd at the Nyquist rate and the samples be estimate into 4 levels. The quantized levels are assumed to be independent and equally probable. If we transport 2 quantized samples per second, the cultivation rate is ________ bits / second. (A) 1 (B) 2 (C) 3 (D) 4 Answer: - (D) Exp: - Since ii samples are transmitted and separately sample has 2 bits of information, indeed the information rate is 4 bits/sec. © entirely rights reserved by Gateforum Educational Services Pvt. Ltd. No part of this...If you want to pound a full essay, companionship it on our website: Orderessay

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