Please give brief descriptions and examples with diagrams on
CHANNEL POWER
POWER DENSITY
IQ DIGITAL ANALOG MODULATION

Capacitors and Inductors

Identify some of the different types of capacitors, and their characteristics. Identify some of the different type of inductors, and their characteristics. It would be appropriate to include small pictures.

In your own words, describe what an operational amplifier is and what its major applications are. Then describe what an ideal model for op amp is and what some of the main assumptions made for an op amp to be modeled with an ideal model.

Q. Two 3-phase induction motors A, B are identical in all respects except that motor A has a larger air gap than motor B. Explain which of the two motors will have:

(i) More load current

(ii) Poorer no-load power factor

(iii) Slip

(iv) Speed of rotor.

Please give brief descriptions and examples with diagrams on
SHDN
LNA
VSWR

Hi, I am trying to build Wien-Bridge oscillator in PSpice and I want to produce sine wave. The circuit seems to be correct but when I do tansient analysis the output is not produced. What should I do?

A transformer with rated power of 250 kVA and a secondary voltage of 230/400 V, 50 Hz, delivers energy to the following loads:
- 1 three-phase engine of nominal power 30 kW, 93% efficiency and power factor 0.9
- 90 lightning systems of 250 W each, rated voltage 230 V, and cos(phi)=0.6 (i), connected in a balanced manner
Consider a direct sequence and a reference of voltages V1=V∠0º
Find:
a) The true, reactive and apparent power provided by the transformer
b) The effective value of the current in each load
c) The phasors of the line currents provided by the transformer
d) The equivalent single phase circuit of the load
e) The reactive power and capacity (in wye and delta configurations) of a battery of capacitors so that we obtain a global power factor of 0.95 (i)
f) The new apparent power provided by the transformer after correcting the power factor
g) The effective value of the line currents if the transformer works at a power factor of 0.7 (i) in a balanced manner
h) The effective value of the line currents if the transformer works at a power factor of 1 in a balanced manner

Consider the system: ?[?] − 0.5?[? − 1] − 0.25?[? − 2] = ?[?] + 2?[? − 1] + ?[? − 2]

Assume initial conditions y(-1) = 1, y(-2) = 0 and that the input signal to the system is a discrete-time unit step. Determine the formula for the Z-transform of the solution, Y(z). Subsequently, determine the formula for the solution, y[n], itself.

How to convolve x[n] and h[n] in code composer studio using c . Also tell the steps to see the graph of convolved signal in ccs without connecting any hardware DSPKit

Electric Power Systems

What is transposition , why the transmission lines are transposed?

please explain it by all details with writing by computer for being clear to read it

Convert the binary data “101010000111” into analog waveforms using following
modulation techniques:
a. Two level Amplitude Shift Keying
b. Two level Frequency Shift Keying
c. Two level Phase Shift Keying
d. Differential Phase shift keying
e. Four level Amplitude Shift Keying
f. Four level Phase Shift Keying
g. Eight level Amplitude Shift Keying

2. For the above techniques, let suppose the time required to send one signal is 1 us.
Compute the time required to send the whole data for all the techniques

Consider a closed-loop system with unity feedback. For each G(s) hand sketch the Nyquist plot. Determine Z = P + N, algebraically find the closed-loop pole location, and show that the closed-loop pole location is consistent with the Nyquist plot calculation. K = 2.

a) KG(s) = 2(s-1)

b) KG(s) = 2(s+1)

c)KG(s) = 2/(s+1)

d) KG(s) = 2/(s-1)

Assume that an EM plane wave with an electric field intensity E = (3xˆ − 5zˆ) cos(3ωt − 7z − 4x) (V m−1) is incident from air on the dielectric medium μ = μ0, ε = 3.2ε0 at x > 0. Determine: i) the incident and transmission angles; ii) the reflection and transmission coeffiients; iii) The Brewster angle. How do the determined values differ for those in vacuum?

Use the Smith Chart to find the input impedance of a lossless line of length l terminated in a normalised load impedance zL for l = 0.2λ and zL = 1 + j2. How the value of the input impedance will change if l = 0.5λ? (Show all steps on the Smith chart).