21) Choose the correct answer (s) 1. Which of the following is an even function of...
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21) Choose the correct answer (s) 1. Which of the following is an even function of t.? (a)t 2 (b)t 2-4t (c)sin2t + 3t (d)t 3 +6 2. "A periodic function" is given by a function which (a) Has a period T = 2 (b) Satisfied f(t +T)= f(t) (c) Satisfied f(t +T)= -f(t) (d)Has a period T = 3. The Fourier Transform of the exponential signal ejot is (a) A constant (b) A rectangular gate (c) An impulse (d) A series of impulses 4. The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and 20 respectively. The velocity of a travelling wave on the transmission line is: (a) ZOC (b) 1/(ZOC) (c) ZO/C (d) C/Zo 5. A transmission line whose characteristic impedance is a pure resistance (b) Must be a distortion less line (d) May not be a distortion less line (a) Must be a lossless line (c) May not be a lossless line 6. When a transmission line has a load impedance same as that of the characteristic impedance, the line is said to be a) Parallel b) Perpendicular c) Polarized d) Matched 7. The leakage current in the transmission lines is referred to as the a) Resistance b) Radiation c) Conductance d) Polarization 8. Inverse Fourier Transform of u (o) is (a)1/2 8(t) + 1/at (b) 1/2 8(t) (c) 28(t)+1/xt (d) 8(t) + sin(t) 9. The Fourier Transform of a real valued time signal has a) Odd symmetry b) Even symmetry 10.For the given periodic function: f(t) = c) Conjugate symmetry d) Real for Ost≤2 for 2 st≤ 6. T = 6 5.7=6} The coefficient b₁is : a)-75.68 b)-7.568 c)-6.8968 d)-0.7468 21) Choose the correct answer (s) 1. Which of the following is an even function of t.? (a)t 2 (b)t 2-4t (c)sin2t + 3t (d)t 3 +6 2. "A periodic function" is given by a function which (a) Has a period T = 2 (b) Satisfied f(t +T)= f(t) (c) Satisfied f(t +T)= -f(t) (d)Has a period T = 3. The Fourier Transform of the exponential signal ejot is (a) A constant (b) A rectangular gate (c) An impulse (d) A series of impulses 4. The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and 20 respectively. The velocity of a travelling wave on the transmission line is: (a) ZOC (b) 1/(ZOC) (c) ZO/C (d) C/Zo 5. A transmission line whose characteristic impedance is a pure resistance (b) Must be a distortion less line (d) May not be a distortion less line (a) Must be a lossless line (c) May not be a lossless line 6. When a transmission line has a load impedance same as that of the characteristic impedance, the line is said to be a) Parallel b) Perpendicular c) Polarized d) Matched 7. The leakage current in the transmission lines is referred to as the a) Resistance b) Radiation c) Conductance d) Polarization 8. Inverse Fourier Transform of u (o) is (a)1/2 8(t) + 1/at (b) 1/2 8(t) (c) 28(t)+1/xt (d) 8(t) + sin(t) 9. The Fourier Transform of a real valued time signal has a) Odd symmetry b) Even symmetry 10.For the given periodic function: f(t) = c) Conjugate symmetry d) Real for Ost≤2 for 2 st≤ 6. T = 6 5.7=6} The coefficient b₁is : a)-75.68 b)-7.568 c)-6.8968 d)-0.7468
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The detailed answer for the above question is provided below Answer 1 a t2 The function t2 is an even function of t because when t is replaced by t in ... View the full answer
Related Book For
Advanced Financial Accounting
ISBN: 978-0078025624
10th edition
Authors: Theodore E. Christensen, David M. Cottrell, Richard E. Baker
Posted Date:
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