Tutorial de Coding

Visit Main Website [Click Here ↗]   MATLAB Script %%% Code starts here %%% clc; clear all; close all; carrier_frequency=5; %Hz carrier_frequency2=7; %Hz This will be utilized for FSK's second carrier x=[1 0 0 1 1 0 0 1] % input signal ; length=size(x,2);   i=1; while i<length+1      t = i:0.001:i+1;     if x(i)==1        ask=sin(2*pi*carrier_frequency*t);        fsk=sin(2*pi*carrier_frequency*t);        psk=sin(2*pi*carrier_frequency*t);     else         ask=0;         fsk=sin(2*pi*carrier_frequency2*t);         psk=sin(2*pi*carrier_frequency*t+pi);     end              subplot(3,1,1);     plot(t,ask);     hold on;     grid on;     axis([1 10 -1 1]);  title('Amplitude Shift Key')     subplot(3,1,2);     plot(t,fsk);     hold on;     grid on;     axis([1 10 -1 1]); title('Frequency Shift Key')       subplot(3,1,3);     plot(t,psk);     hold on;     grid on;     axis([1 10 -1 1]);  title('Phase Shift Key')       i=i+1;  end %%% Code ends here %%% Visi

  Question:  In the following question, select the related number from the given alternatives.  42 : 105 : : 38 : ? Options:   1) 111  2) 135  3) 95  4) 83  Answer:  95 (42*3) - (42*0.5) = 105 (38*3) - (38*0.5) = 95 Next>> <<Previous Go back

  Question:  Determine the separation between the plates (in mm) of a parallel plate capacitor placed in air, when the area of the plates is 0.002 sq. meter, the voltage of the battery connected to this parallel plate capacitor is 4 V and the charge stored on the plates is 16 pC. Answer: We know that C = Q/V or, C=(16*10^(-12)) / 4 or, C = 4*10^(-12) Capacitance between two parallel plates is calculated as, C = €A/d Where, € = 8.854*10^(-12) A = Area of plate d = Distance between plates Now, d = €A/C or, d = (8.854*10^(-12)*0.002) / (4*10^(-12)) or, d = 4.4 mm Next>> <<Previous Go back

  Question   Which of the following countries will host the Commonwealth Games in 2018?  Options:  1) Sri Lanka 2) Indonesia 3) Australia  4) Britain   Answer  3 The 2022 Commonwealth Games took place in Birmingham, England. The 2026 Commonwealth Games (Victoria 2026) will take place in Australia. <<Previous Page Next Page>> Go back

  Question A word is represented by only one set of numbers as given in any one of the alternatives. ...P is represented by 79, 59 and 'I' can be represented by 31, 20 etc. Similarly, you have to identify the set for the word 'TURF'. Options:  1) 67,99,75,23  2) 89,56,41,34  3) 87,97,42,12  4) 97,56,75,24 Answer: 4  Firstly, look at the matrix-ll, 'P' is located at row no 7 and column to 9. Similarly, another P is  located at row no 5 and column to 9. Same, rule is applicable for   'I' also.  Given word is 'TURF' From the abovementioned matrix-ll, T is located at row 9 and column 7. So, value for 'T' is 97. Similarly, the values for U, R, and F is 56,75, and 24, respectively. Next Page>> Go back

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