Write a matlab code for given task

Use your ‘sin’ or ‘cos’ function to generate a sinusoid wave having two components as
f1 = 3kHz and f2 = 5kHz and then sample it with fs = 10kHz. Calculate its fft with zero frequency
component in the middle. Plot it on a properly scaled w-axis. Specify if there is aliasing or not?
If there is aliasing specify which component is casing the aliasing

A coreless Dc motor is attached with a whell.Generate its tranfer fucntion and kinametis with proper book refrence page(Introduction to robotics) and solution.

Conceptualize the cut off region and a saturation region of a BJT.

A three phase, 60 Hz, 480 V, Y-connected, two-pole synchronous generator has a synchronous reactance of 0.95 Ω per phase. Its armature resistance is negligible. Its combined friction and windage losses are 1.3 kW and its core losses are 0.95 kW. The field current is constant at no-load. Its full load armature current is 55 A at 0.9PF lagging. Assume phase voltage is a reference. Determine following:

a) Its terminal voltage when it is loaded with the rated current at a power factor of 0.9 lagging

b) Its terminal voltage when it is loaded with the rated current at a power factor of 0.9 leading

Hence,

Answer for a (0.9 lagging) should equal VT= 433.59 V

Answer for b (0.9 leading) should equal VT= 512.486 V

Design voltage x4 multiplier(Voltage quadrupler) if rms voltage of AC is 220V and frequency is 60Hz

Hello There

What is the definiton of Net Zero Energy? and Please give the example of its usage... Thanks

Analyze following program and Find Syntax errors.

#include<iostream>

int show(int x)

int main()

{     int A,B;

      char B=10;

cout<<”Enter Value of A”;

cin<<A;

show(A)

show(50)   

      }

      cin.get();

}

int show(int x);

{

cout<<”Value is =” <<X

cout<<endl;

}

a. State the ampere circuital law

b. Derive expression for inductance of a Toroid?

c. Derive the set of Maxwell’s equations with solutions in the integral form from the
fundamental laws of a good conductor?

d. Derive the expression for torque developed in a rectangular closed circuit current (I) in a
uniform field?

Explain with the diagram the structure and theory of the work of a three-phase electric generator, specifying the function of each part ؟؟

For the circuit 10 Vp AC with R=10 Ω, and L=8.2 mH (in series) compute X_L Z, i_RMS, V_R, V_L for different frequencies ranging from f=20 Hz to f=100 Hz at 20 Hz intervals, and from then onwards, discrete values f= 200, 500, 1000, 2000 and 5000 Hz. Plot frequency (x-axis, logarithmic) vs. and frequency (x-axis, logarithmic). What happens to the circuit as frequency increases (which component is taking over?).

Macro-Hydropower. A dam has a height of 220 meters. Total generating capacity for the power plant at the dam is about 1 GW (1 million kW). Assume an effective head of 215 meters and generating efficiency of 90%.

1. At maximum capacity, what flow is required through the dam’s turbines to generate its power?
2. If the dam operates at 60% of capacity on average, how much energy does it produce in a year? Express your answer in watts (e.g., W, kW, MW, GW, etc.).
3. How many people should this energy support, assuming average community consumption of 1000 kWh per year per person?
4. How much coal would be required in a coal-burning power plant to generate the equivalent amount of energy as the Dam generates in a year? Assume that the dam generates 5 billion kWh hours (5×10⁹ kWh or 5 terra-watt hours) of energy annually. How many coal cars would be required to carry this coal? How long would a train of these cars be?
   • The energy content of coal is 8,142 kWh/ton
   • The energy efficiency of a typical coal-burning power plant is about 38%
   • A railroad coal car carries about 100 tons of coal and is about 22.86 m in length

Take four 12VDC/7.5AH lead acid batteries. How different associations of these batteries affect the power? What’s the key on defining the best arrangement?
.

Develop a complete 4 bit flash ADC, showing the ladder, omAmps, relevant table and logic expression for the output of the ADC. Show the logic expression and logic circuit of all the 4 bits such as (MSB, LSB and two middle ones) using NANDs only.

Consider a two-dimensional hexagonal lattice:

(a) Find Fermi wave vector of the free electron circular Fermi surface in reciprocal space.

(b) Draw the free electron Fermi surface in the reduced zone scheme when the lattice points are occupied by atoms with:

i. One valence electron/atom.

ii. Two valence electrons/atom.

(i) Design a 7-segment LED driver using the truth table given in the lecture notes, inside a hierarchical block. Assume only numbers from 0 to 9 will be sent to your block. Explain your design. Name your block with your student number: eg “123456 LED driver”.

(ii) Test your circuit in block form using digital interactive constants to represent the inputs, and showing for every input combination what the LED display shows. Explain your testing.