##### 9. A 150 + j300 W load is connected to a 75 W transmission line. Determine...

9. A 150 + j300 W load is connected to a 75 W 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 W source.
Redo problem 9 using a short-circuited stub as the equivalent parallel reactance.

In: Electrical Engineering

##### Explain the operation(s) performed by a return from an IRQ or FIQ interrupt procedure

Explain the operation(s) performed by a return from an IRQ or FIQ interrupt procedure

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##### What are the stop and start bit roles in an UART? How the transmitter and receiver...

What are the stop and start bit roles in an UART? How the transmitter and receiver are synchronized in an UART?

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##### Explain why several semiconductor materials might be put together to obtain more efficient solar cells.

Explain why several semiconductor materials might be put together to obtain more efficient solar cells.

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##### write a matlab function for frequency analysis using DFT. the function should take as input a...

write a matlab function for frequency analysis using DFT. the function should take as input a signal, and as output the number of sinusoids and their frequencies.

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##### What is the hidden-terminal problem as it relates to CSMA in wireless sensor networks?

What is the hidden-terminal problem as it relates to CSMA in wireless sensor networks?

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##### We wish to install a residential solar array at location Lat 400 N; Long 900W with...

We wish to install a residential solar array at location Lat 400 N; Long 900W with (a) fixed tilt angle (θ) or (b) adjustable θ. (a) Define and evaluate θ. (b) Specify the range on θ and the time interval (∆t) between θMAX and θMIN

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##### Can someone explain how to manipulate the clock in verilog code? For example, I do not...

Can someone explain how to manipulate the clock in verilog code? For example, I do not understand how to go from 100MHz to 68027Hz.

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##### 1 unit generator and motor syncron with rating 25 MVA, 13,2 KV. both have subtransien reactance...

1 unit generator and motor syncron with rating 25 MVA, 13,2 KV. both have subtransien reactance 15%. reactance 10% to machine base. motors rating 20 MW (0.9 lagging) and terminal voltage 12,5 KV. 3 phase fault occurs at the generator terminal. calculate the subtransient generator currents, motor subtransient currents and symmetrical fault currents using thevenin theorem

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##### 6 The single-phase half-wave ac voltage controller in Figure 11.1a has a resistive load of R...

6 The single-phase half-wave ac voltage controller in Figure 11.1a has a resistive load of R = 2.5 Ω and the input voltage is Vs = 208 V (rms), 60 Hz. If the desired output power is Po = 2 kW, calculate (a) the delay angle α and (b) the input PF.

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##### Let a filamentary current of 5 mA be directed from infinity to the origin on the...

Let a filamentary current of 5 mA be directed from infinity to the origin on the positive z axis and then back out to infinity on the positive x axis. Find H at P(0,1,0).

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##### Q2 (a) Define the meaning of the balanced supply in the three phase system. (2 marks)...

Q2 (a) Define the meaning of the balanced supply in the three phase system.
(b) Distinguish four (4) possible configuration of the balanced three phase system.
(c) The line voltages applied across the life terminals of a balanced four-wire system,
star connected load are 400 V. The load impedance consists of a 4 Ω resistor that is
in series with an inductor while the power factor of the system is equal to 0.75,
assume the phase sequence is RYB.
(i) Sketch the circuit diagram of the system.
(1 mark)
(ii) Calculate the phase voltages of each loads.
(iii) Calculate the phase currents that flow into each loads.
(iv) Draw the phasor diagram of the load currents.
(v) Draw the phasor diagram of the load voltages.
(d) A balanced three-phase delta connected source supplies line currents of 15A to a
balance three-phase star connected load, consider the line current of Ia as a reference
and the phase sequence is RYB. The load in each phase is composed of two (2)
units of 8 + j6 Ω impedances that are connected in parallel.
(i) Sketch the circuit diagram of the system.
(1 mark)
(ii) Calculate the phase currents of the source.
(iii) Deduce the phase currents of the load.
(iv) Calculate the phase voltage of the source.
(v) Draw the phasor diagram for the phase currents, line currents and phase
voltages of the voltage sources.

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##### With appropriate sketching and with your own words, explain the relationship between damping ratio and system...

With appropriate sketching and with your own words, explain the relationship between damping ratio and system response.

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##### Show that the diffusion current of a forward-conduction pn junction is a strong function of temperature.

Show that the diffusion current of a forward-conduction pn junction is a strong function of temperature.

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##### What is AN4 pin on BAYSYS 3 board? i know there is AN0-AN3. I cannot locate...

What is AN4 pin on BAYSYS 3 board? i know there is AN0-AN3. I cannot locate the pin and function of AN4

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