1. Make a way to calculate the energy of 5000gr of coal Calorific Value 475 k cal / kg into electrical energy with the combustion requirements and the conversion factor by yourself.

A balanced 3-phase load of 30MW at 132kV, 50Hz and 0.8P.F

lagging is delivered by means of a 100km transmission line.

The series impedance of a single conductor is (20+j25)ohms

and the total phases to neutral admittance is 0.00000316

Siemen. Using the nominal ? method, determine

(a) the ABCD constants of the line.

(b) The receiving end current

• (c) the sending end voltage

• (d) the sending end current

• (e) the sending-end power

• (f) the receiving-end power

• (g) The efficiency of the line

• (h) The voltage regulation of the line

• (i) Sending end p.fAs

Create a VHDL code of a 4 bit Counter using D flip flop and a Frequency Divider that provides the clock signal input for counter

3. The lecture notes show a 4-bit by 4-bit multiplier. If the same approach is used to make an 8-bit by 8-bit multiplier:

a) How many AND gates are required?

b) If each AND gate has 1 ns of delay and each adder has 5 ns of delay, what is the total delay for the 8-bit by 8-bit multiplier?

c) Can you think of a better way to array the adders to reduce the delay?

(MATLAB)

Write a script that would create a 3x5 matrix of random integers and write this new matrix to a file called “Assignment3_Question5.dat”.

Speaker systems are typically rated by a resistance value (referred to as characteristic impedance), what resistance is this amplifier designed for?

What is the power delivered to the speakers in Watts?

Please explain!!!!!

A balanced three-phase generator delivers 6.3 kW to a delta-connected load with impedance 13 - j23.4 Ω per phase. The magnitude of the line current I_Lis:

A generator whose reference voltage is 1 [_0 ° pu, feeds a load of 150 Mwatts and 50 Mvars through a lossless line whose reactance is j 0.15 in pu based on 100 MVA.- Find the value of the voltage in the load (magnitude and angle) for the first iteration using the Newton Raphson method assuming an initial stress of 1.0 [_0 °

In CASCADE control, some systems will request that you select one of three different equations.

a) Explain what is meant by EQUATION A, how it is represented graphically, and where it can be utilized.

b) Explain what is meant by EQUATION B, how it is represented graphically, and where it can be utilized.

c) Explain what is meant by EQUATION C, how it is represented graphically, and where it can be utilized.

A stable system has four zeros and four poles given by zeros: z = ± 1, ±j and poles: z = ± 0.9, ±j0.9.

It is also known that the frequency response function H(e^jω) evaluated at ω=π/4 is equal to 1, i.e., H(e^jπ/4)=1

a. Determine the transfer function H(z), and indicate the region of convergence.

b. Determine the difference equation representation.

Work the following problems.

1)Express the speed of light…

a. In ps/cm

b. In ns/foot

2)Consider a signal with a rise time of 200 ps.

a. What is the knee frequency of the signal?

b.Consider the signal on a trace over an insulator with ε_r = 4. How long is the rising edge, in inches?

c.How long does a trace have to be in order to be considered “distributed”?

3)The same signal is routed on a circuit board. The output capacitance is 15 pF and the resistance of the gate that drives the signal is 20 ohms.

a. What is the risetime of the signal, taking into account the R and C of the output driver?

b. What is the new knee frequency, after RC filtering?

4) A circuit board is being designed with ε_r = 4.2. A trace is laid out with a length of 2.5 cm.

a.What risetime is needed for the trace to be considered distributed and not lumped?

b.What knee frequency corresponds to the risetime you calculated in a?

c.The signal has a risetime of 50 ps. What RC (that is, an RC time constant of what value) is needed to slow the signal down to the risetime you calculated in a?

d.The load capacitance of the signal is 20 pF. What value of resistor should be inserted onto the line to obtain the value of RC you calculated in c?

(a) What are Multiplexers, and why are they important in computers

(b) What are D flip-flops, and how are they used in computers?

I am supposed to do a communication systems project including MATLAB. Topic maybe something related to for example OFDM system, AMR reading using gprs etc. Or any communication systems related topic. Can some one provide with the brief project description and MATLAB code?

Show that the set {DiracDelta(t-tao): t, tao are real numbers} is a basis set for the analog complex signal space.

Write a new MATLAB function as described in the following:

1. The new function will have three input parameters: f, W, C. 2. Parameter f will specify the frequency of the square wave. 3. The parameter W will specify the width of the single pulse as a number of sample periods. 4. The parameter C will specify the number of square wave cycles. 5. Calculate a number of samples, N, to run the simulation for both waveforms. 6. Create one signal that is a square wave of period 2W samples and lasts for a duration of C cycles. 7. Create a signal beginning with a single pulse of amplitude 1 and a width of W samples followed by N-W samples with amplitude of 0. 8. Plot time and frequency domain plots for each. Use subplots to show all four graphs on the screen at once, arranged the same way as in the reference lecture slide. Scale the plots as necessary so that the desired characteristics can be easily seen. Label the x-axis with the correct units of time/frequency. Run the new function with f=1000, W=20, and C=10.