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Q1) Choose the best answer for five only of the following 1. The minimum value of the directivity of an antenna is.......... a) Unity b) Zero 2. Very low signal strength in antenna. a) Minor lobes b) Null c) Infinite d) None c) Antenna patterns d) Major lobes 3. the maximum directivity of an antenna that normalized far field pattern is given by? ((sin cos² ) 1/2 0 ≤0≤π and 0 ≤ p ≤π/2,3π/2≤ p ≤ 2π E(0, 4) = {(si is a) 7.07dB b) 7.7dB elsewhere c) 8.7dB d) 9dB 4. the depth of penetration of 1 MHz wave in sea water which has conductivity σ = 4 mhos/meter and permeability approximately equal to that of free space is a) 25mm b) 25cm c)25m 5. The free space media can be considered as d) 25km a) Lossy media b) lossless media c) good conductor d) a and c 6. The input impedance is equal to the load impedance when...... a) 1 = 2 b) 1 = 1/2 c) 1 = 2/4 d) a and b

Q1) Choose the best answer for five only of the following 1. The minimum value of the directivity of an antenna is.......... a) Unity b) Zero 2. Very low signal strength in antenna. a) Minor lobes b) Null c) Infinite d) None c) Antenna patterns d) Major lobes 3. the maximum directivity of an antenna that normalized far field pattern is given by? ((sin cos² ) 1/2 0 ≤0≤π and 0 ≤ p ≤π/2,3π/2≤ p ≤ 2π E(0, 4) = {(si is a) 7.07dB b) 7.7dB elsewhere c) 8.7dB d) 9dB 4. the depth of penetration of 1 MHz wave in sea water which has conductivity σ = 4 mhos/meter and permeability approximately equal to that of free space is a) 25mm b) 25cm c)25m 5. The free space media can be considered as d) 25km a) Lossy media b) lossless media c) good conductor d) a and c 6. The input impedance is equal to the load impedance when...... a) 1 = 2 b) 1 = 1/2 c) 1 = 2/4 d) a and b

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q1) Choose the best answer for five only of the following 1. The minimum value of the directivity of an antenna is.......... a) Unity b) Zero 2. Very low signal strength in antenna. a) Minor lobes b) Null c) Infinite d) None c) Antenna patterns d) Major lobes 3. the maximum directivity of an antenna that normalized far field pattern is given by? ((sin cos² ) 1/2 0 ≤0≤π and 0 ≤ p ≤π/2,3π/2≤ p ≤ 2π E(0, 4) = {(si is a) 7.07dB b) 7.7dB elsewhere c) 8.7dB d) 9dB 4. the depth of penetration of 1 MHz wave in sea water which has conductivity σ = 4 mhos/meter and permeability approximately equal to that of free space is a) 25mm b) 25cm c)25m 5. The free space media can be considered as d) 25km a) Lossy media b) lossless media c) good conductor d) a and c 6. The input impedance is equal to the load impedance when...... a) 1 = 2 b) 1 = 1/2 c) 1 = 2/4 d) a and b
Transcribed Image Text:Q1) Choose the best answer for five only of the following 1. The minimum value of the directivity of an antenna is.......... a) Unity b) Zero 2. Very low signal strength in antenna. a) Minor lobes b) Null c) Infinite d) None c) Antenna patterns d) Major lobes 3. the maximum directivity of an antenna that normalized far field pattern is given by? ((sin cos² ) 1/2 0 ≤0≤π and 0 ≤ p ≤π/2,3π/2≤ p ≤ 2π E(0, 4) = {(si is a) 7.07dB b) 7.7dB elsewhere c) 8.7dB d) 9dB 4. the depth of penetration of 1 MHz wave in sea water which has conductivity σ = 4 mhos/meter and permeability approximately equal to that of free space is a) 25mm b) 25cm c)25m 5. The free space media can be considered as d) 25km a) Lossy media b) lossless media c) good conductor d) a and c 6. The input impedance is equal to the load impedance when...... a) 1 = 2 b) 1 = 1/2 c) 1 = 2/4 d) a and b
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