Write an essay about the online exams at your university ?

A) A 150 + j300 Ohm load is connected to a 75 Ohm transmission line. Determine the value of the reactance to put in parallel at the input to the line and the length in wavelengths of the shortest transmission line to match with a 75 Ohm source.

B) Redo A using a short-circuited stub as the equivalent parallel reactance.

design a circuit of an alarm system that has buzzer that rings for 2 minutes and LED'S that flicker for 2minutes.

TOPIC; RENEWABLE ENERGY

DESIGN A SOLAR PLANT SYSTEM TO SUPPLY A HOME

MUST INCLUDE ALL INFORMATION FROM BASIC CALCULATION, TOTAL KWH PER MONTH, CHOOSE BATTERY SIZE, CHOOSE ARRAY, INVERTER.

PREPARE A REPORT THAT STATE ALL NEGATIVES AND POSITIVES.

A 14.2-mH inductor carries a current i = Imax sin ωt, with Imax = 5.20 A and f = ω/2π = 60.0 Hz. What is the self-induced emf as a function of time? (Express your answer in terms of t where e m f is in volts and t is in seconds. Do not include units in your expression.)

e m f =_________________-

Design an active high pass filter with a high frequency gain of 5 and a cutoff frequency of 2kHz. Use a 0.1 uF capacitor in your design.

Briefly explain the differences between a VTVM and a multimeter

1- Aliasing can affect DFTs, where higher frequency signals can appear as lower frequency signals due to the use of an N point DFT that has a limit to the highest frequency it can detect. Give one approach when using a DFT to reduce the potential of aliasing.

2-.   When using the standard MATLAB commands, or the design equations, to design an FIR filter why is it a good idea to check if the design meets requirements ? Be specific.

3-When using the bilinear transform what is meant by “pre-warping” and why is it necessary ?

4- When using one of the classic filter approximations, which approximation should be used if :

1. the minimum amount of output distortion is desired.

b. the minimum filter order is desired.

5- Give one advantage of using an FIR filter and one disadvantage of using an FIR filter, when compared to an IIR filter design for the same specification.

Advantage:

Disadvantage:

How to use or embed assembly routines/codes in C programs?

Design an IIR digital filter based on the bilinear transformation method using the following transfer function as a reference (use three decimal places of precision for your response):
H (s) = 5 / (s ^ 2 + 1.1s +5)
The digital filter must have a resonant frequency at wr = pi / 3

a) Calculate H (z)
b) Find the correctly simplified difference equation of the designed system.
c) Implement the discrete system obtained using block diagram..

Show every step

full theory and mathematical derivatives behind induction type Instruments

Synchronous generators are kept in synchronism by the:

1) Implement the given logic function using a 4:1 MUX. F(A,B,C) = Σm(0,1,3,7) Show the truth table, the 4:1 MUX schematic with the inputs, select inputs and the output.

2) 2) For an 8:3 priority encoder:

a) Draw the schematic.

b) Write the truth table.

c) Write the Boolean expressions for each of the outputs in terms of the inputs. d) Draw the logic circuit for the outputs in terms of the inputs.

A construction unit Class C Basic Toolroom has a 110 volt 20A circuit has the following items: three 200 watt lights, a 2500 watt heating machine, a 1000 watt heating machine and a ¼ hp motor (use 1000 watts/hp). All of these items act as a load on the circuit. As measured in amperes, determine the circuit load.