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 (3**π** 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.

In: Electrical Engineering

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)

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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.

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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

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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

In: Electrical Engineering

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 Z_{0}. (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?

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If
I am given E=z 3 cos(3*10^3t + betax) I need to find H. I do not
have a specific number for betax right now. Could you please give
me a layout of how to work this problem?

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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.

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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: Electrical Engineering

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.

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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

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The Question: Suggest solutions to each problem separately for the nine problems in the transistor

1. A short circuit may occur inside the TV set due to

the failure of transistor circuitary. This will allow a

high current to pass through the device.

screen or spots in the display.

of transistor.

2. The TV display could get damaged forming blacked

3. High noise output from the TV set due to the failure

4. The TV could become hot and may even get burst if

5. If the TV set is not connected with proper neutral

the current flowing through is of high magnitude.

connection, the failure of a transistor could result in

severe amount of shock.

6. It may also damage the remotely operated

mechanisms of the TV.

channels due to the failure of amplifier circuits.

flow.

7. It could interfere with the bandwidths of different

8. Soldering material may wear out due to high current

9. Improper metal deposition inside the TV circuitary

which could cause other functions to fail thoroughly.

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

In: Electrical Engineering

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.

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

Thanks

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