Consider a thin flat rectangular region that of size 4 x 2 m2 and it is electrically insulated at its four corners. (A)Solve Laplace’s equation  2 V(x,y) = 0 in the rectangular region 0 < x < 4 m and 0 < y < 2 m using the separation of variable technique subject to the following boundary conditions:
V(0,y) = 0
V(4,y) = q(y) = 50 sin (3π y / 2)
V(x,0) = 0
V(x,2) = f(x) =100 sin (π x / 4)
(B) Use the result of part (A) to find the corresponding electric field inside the region.

A three-phase positive sequence Y-connected source supplies 12 kVA with a power factor of 0.75 lagging to a parallel combination of a Y-connected load and a Δ-connected load. The Y-connected load uses 6 kVA at a power factor of 0.6 lagging and has an a-phase current of 12∠−30∘A

Part A: Find the complex power per phase of the  Δ-connected load. (VA)

Part B: Find the magnitude of the voltage. (Volts)

Does inserting the dielectric increase or decrease the amount of charge the battery is able to push onto the capacitor plates? Explain why the dielectric has this effect.

a) determine the critical distance for the two-ray model in an urban microcell (ht=10m, hr=3m) and an indoor microcell (ht=3m, hr=2m) for fc=2GHz. What are the practical implications of your obtained values
b) Consider an indoor wireless LAN with fc=900MHz, cells of radius 100m, and none-directional antennas. Under the free-space path lost model, what transmit power is required at the access point such that all terminals within the cell receive a minimum power of 10uW. How does this change if the system frequency is 5GHz.
c) The transmission power of a wireless system is 40W, under a free-space propagation model. 1) what is the transmission power in unit of dBm 2) The receiver is in a distance of 1000m, what is the receiver power, assuming that the carrier frequency fc=900MHz and Gt=Gr=0dB 3) Express the free space path lost in dB

Design and simulate a first order high pass filter so that it has a cutoff frequency of 2 kHz and a passband gain of 1.

please use online multisim

10. A transmission line operating at 500Mrad/s has L=0.5µH/m, C=32pF/m, G=100μmho/m and R=25Ω/m. (a) Calculate values for γ, α, β, v, λand Z₀. (b) What distance down the line can a voltage wave travel before it is reduced to 10 percent of its initial amplitude? (c) What distance must it travel to undergo a 90^o phase shift?

A three-phase, 11.2-kW, 1750-rpm, 460-V, 60-Hz, four-pole, Y-connected induction motor has the following parameters: Rs = 0.53 Ω, R’r = 0.38 Ω, Xs = 1.23 Ω, X’r = 1.45 Ω, and Xm = 25.2 Ω. The motor is controlled by varying both the voltage and frequency. The volts/hertz ratio, which corresponds to the rated voltage and rated frequency, is maintained constant.

a) Calculate the maximum torque, Tm and the corresponding speed, ꞷm for 60 Hz and 30 Hz.

b) Repeat (a) when Rs is negligible.

c) Draw a graph of torque–speed characteristics with volts/hertz control with the range of β between 0.4 and 1.

MULTISIM
1. With the knowledge you’ve gained in basic electronics, design and simulate a
circuit that comprises of a transformer, diode, capacitor, voltage regulator, zener
diode, transistors and any other vital components needed to make the circuit work. A. Explain how the circuit you’ve built works
B. Describe the function of each of the components in the circuit. 2. As a electronic engineer, design a circuit where the transistor as a switch and
another where the transistor is for amplification.

In MATLAB; 3- Plot a 8V-2KHZ Sine signal in MATLAB. While this signal varies between C = 10uF-100uF in 1uF steps for your application to the serialRLC circuit, calculate the L values ​​for R = 50 Ohm (constant) that can pass the maximum current through the circuit and write to the file. Plot the change graph of the L value calculated according to each C value.

what are the steps involved in hooking up an electrical system from beginning to end of job. just an outline would be great...also permits involved. in canada

I mean hooking up lights and outlets how many per room etc

Discuss the transmission and reflection of electromagnetic wave from a lossless medium to a lossy medium, normal incidence.

Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 420+300i Ω/ϕ ; load 2 is Δ-connected with an impedance of 2400-1780i Ω/ϕ ; and load 3 is 170.1+2201i kVA . The loads are fed from a distribution line with an impedance of 2+17i Ω/ϕ . The magnitude of the line-to-neutral voltage at the load end of the line is 23√3 kV.

Part A: Calculate the total complex power at the sending end of the line.

Part B: What percentage of average power at the sending end of the line is delivered to the loads.

Hello, i Have an OPAMP of 66dB ,how using negative feedback we can reduce the closed loop gain to 16dB

Thanks