For the following causal difference equation,

given that y[-1] = 2, y[-2] = 3, and x[n] = 3^{n}u[n],
solve using z-Transforms.

(Hint: convert to delay operator form, find the z-Transform, use
PFE to find the inverse z-Transform)

y[n + 2] – 3y[n + 1] + 2y[n] = x[n + 1]

In: Electrical Engineering

Assume a transmission line with ZL = 65 + j40 Ω and Zo = 60 Ω. If the frequency of the line is 2GHz, use the Smith Chart to find: i) the reflection coefficient; ii) the distance to the first voltage maximum; iii) the voltage standing wave ratio; iv) the admittance of the load; v) the position of the short-circuited stub on the main line for a perfect impedance matching; vi) the length of the short-circuited stub. (Show all steps on the Smith chart)

In: Electrical Engineering

Plot -3x³+ 25sin(3.14x/4-15.5/4) + 7.43 for -2 < x < 2.5 to determine its roots . The number of roots is: using MATLAB

In: Electrical Engineering

For the following causal difference equation,

given that y[-1] = 0, y[-2] = 1, and x[n] = u[n], solve using
z-Transforms.

(Hint: convert to delay operator form, find the z-Transform, use
PFE to find the inverse z-Transform)

4y[n + 2] + 4y[n + 1] + 2y[n] = x[n + 1]

In: Electrical Engineering

Two point loads are located on the x-axis as follows: the load
q1 = -3.00 nC is at x = 0.3m and the load q2 = + 2nC is at x =
-0.2m. What are the magnitude and direction of the total force on a
negative charge of value q3 = -10nC located at (0, 0.5) m?

In: Electrical Engineering

design a stepper motor in 8051 microcontroller in which stepper motor moves clockwise for some time and stops , then anticlockwise for some times and motor stops. (Code in assembly language needed)

In: Electrical Engineering

can you answer those question as field service engineer

1-Please describe in detail your knowledge of electrical
engineering?

2-Please describe in detail your knowledge of mechanical
engineering?

3-Please describe in detail your knowledge of computer
software?

4-What does customer service mean to you?

5-What interests you most about this position?

6-What are your career goals?

7-Why are you looking for another job?

8-What is your business travel tolerance?

9-What has been your business travel levels in your past
opportunities?

In: Electrical Engineering

Then, answer the following questions about the System on a Chip
(SOC) and Package on Package (POP) that the RPi implements:

1. The Broadcom SoC is installed in a large range of devices.
Explain what the advantages are of having a System on a Chip rather
than a separate CPU, GPU, and RAM components.

2. What are the disadvantages to a SOC style chip?

3. Explain using step-by-step instructions how the CPU executes a
simple program such as adding two whole (integer) numbers together.
You should refer to the Control Unit, RAM, cache, registers, and
the Arithmetic Logic Unit in your explanation. You should also be
able to name the roles of some of the registers.

4. What is the basic diﬀerence between a SOC and a POP? Which
method was used to include the RAM on the R-Pi?

5. Where does one typically ﬁnd SOC and POP type chips?

6. What are some of the instructions that make up the Instruction
Set Architecture of the Broadcom ARM chip in your Raspberry Pi? An
example we’ve used in class is ADD, list at least 5 others. Does it
use a RISC or a CISC instruction set?

7. What are some of the named registers in your Broadcom ARM Chip
on your Raspberry Pi?

8. How much level 1, level 2, and level 3 cache does your CPU in
the Raspberry Pi have access to?

In: Electrical Engineering

It is required to find out the day night equivalent noise levels at location. The three hourly day average values in dB are 45,58,50,61,64 and the three hourly night average values in dB are 48,42,28. compute Ldn.

In: Electrical Engineering

A
system has the transfer function H(s)=3(s2+7 s)/(s2+8s+4). Draw a
Bode plot of the transfer function and classify it as lowpass,
highpass, bandpass, or bandstop. Draw the Direct Form II for this
system.

In: Electrical Engineering

Understand the principles of Quadrature Phase Shift Keying (QPSK). Measure Bit Error Rate (BER). Understand the effects of having phase errors in the received signal.

i need matlab code for qpsk modulation and demodulation both

also bit rate error using of the recived signal

i repeat i need matklab code for all task

1) qpsk modulation

2) qpsk demodulation

3) ber bit eroor rate matlab code

In: Electrical Engineering

Three point electric charges of magnitude Q1=2.0 μC, Q2= -1.0 μC, and Q3= 2.0 μC are situated in a straight line in air 10 cm apart (the negative charge is in the middle). Determine the of the force of each charge on the other two.

In: Electrical Engineering

**Answer in MATLAB format**. 4. A telephone line
hangs between two poles 14 m apart in the shape of a catenary y =
20cosh (x/20)-15, where x and y are measured in meters. a. Find the
slope of this curve where it meets the right pole. b. Find the
angle, θ between the line and the pole.

In: Electrical Engineering

Please do it clearly on white A4 page. thanks

A three-phase, 4 poles, 1200Hp, 2300V, 60 Hz Delta connected synchronous motor has a synchronous reactance of 5 Ohm. At full load the line current is 265 A and lags the terminal voltage. Neglect all losses and compute the following

Torque of the motor

Ea and delta angle

Motor Power Factor

Reactive power

In: Electrical Engineering

A current transformer rated 500/5 A, 20 VA, 50 Hz has
a turns ratio of 1:99. Its

resistance aand leakage reluctance of the secondary winding are 0.4
Ω and 0.35 Ω

respectively. At rated non-inductive burden, the inphase and
quadrature components of

the exciting mmf are 6 AT and 8 AT respectively. Determine the
current and phase angle error.

In: Electrical Engineering