A 325 V sinusoidal voltage generator at 50 Hz supplies a load
modelled by a
35 resistance in series with a 95.5 mH inductor. The loss of the
transmission line between
the generator and the load is modelled by a series resistance of 5
. Calculate the average,
reactive and apparent power a) consumed by the generator, b)
consumed by the load.
Determine the power factor at which the load is operating.
Please outline the method clearly.
Answers should be: 633.75 var of reactive power. 845 W of average power
In: Electrical Engineering
(a) |
In DC motor, quadrant of operation can be defined by the
armature voltage and |
|
|
(b) |
A chopper is used to control speed of 45.36 kW, 1750 rpm, 240 V,
189 A |
(i) |
Sketch the motor-drive circuit as mentioned above and label clearly. |
|
|
(ii) |
Determine the chopper duty cycle during the motoring mode at
rated |
(8 marks) |
|
(iii) |
If the motor is operated in braking mode, what happened to the
armature |
In: Electrical Engineering
Write the equation that describes the behavior of excess charge carriers in a p-type semiconductor under low-level injection.
In: Electrical Engineering
Analyze the ADC circuit to obtain the graphs for the output of the comparator and DAC (ladder network) for a 4-bit ADC if the reference voltage is 11V and the input voltage is 7.5V. Also find the quantization error. Also draw the circuit
In: Electrical Engineering
with a voltage range of 0.874 and -0.855 how can i design a inverting amplifier using standard resistors to produce a voltage output range of -10 to 10 volts?
In: Electrical Engineering
In: Electrical Engineering
List five applications that a continuous path robot could do that a point-to-point robot could not do.
In: Electrical Engineering
Does power generation mix have any role in providing cheaper electricity to consumers?
In: Electrical Engineering
How do you make a soldenoid(coil) with 3D printer. I need detailed instructions so i can make it my self?
In: Electrical Engineering
Describe the parallel operating conditions in transformers in detail. Give the tolerances of the conditions. Why does circulation flow occur? Subtract the load sharing statement for transformers connected in parallel.
In: Electrical Engineering
Generally, a single-phase power is commonly found in domestic households, whereas a three-phase power is preferable for larger demands. For safety purpose, over-current protection components are compulsory in the electrical distribution systems.
i. Explain two advantages of a three-phase system compared to a
single-phase system in the distribution system.
ii. Briefly describe the characteristic and the function of two
types over-current protection device installed in the distribution
board (DB) residential building.
iii. Miniature circuit breakers (MCB) with different current rating
can be used to protect the individual sub-circuit. State the
current rating of the MCB that typically used for:
• lighting,
• socket outlet (radial type),
• socket outlet (ring type) and
• air-conditioner circuits.
In: Electrical Engineering
please type easily that your knowhow useful to learn mosfet engineering.
its hard to read handwrited
I mean I need the easy tips for understanding mosfet engineering.
In: Electrical Engineering
Q1)The following information pertains to Questions 2
Consider a non-magnetic dielectric material with a dielectric constant of 4 and a dissipation factor of 0.004.
What is the phase constant (β) for a uniform plane wave traveling in the medium? Assume frequency of 5.6 GHz. Type your answer in radians per meter to one place after the decimal, i.e., in the form xxx.x.
Q2) What is the attenuation in Nepers over 1 wavelength (product of αtimesλ where λ is the wavelength in the dielectric medium) for a uniform plane traveling in the medium? Express your answer to four places after the decimal, i.e., in the form x.xxxx.
In: Electrical Engineering
Matlab
Implement Fading Channel Simulation: Jakes Model with using
Matlab
In: Electrical Engineering
Thumbs up for all correct answers.
Question 1 5 pts
(TCO 1) _____ service delivers the fastest connections available at an economical megabit-per-second price.
Dedicated leased line |
DSL |
Fiber-optic Ethernet |
Satellite |
Flag this Question
Question 2 5 pts
(TCO 1) Which of the following best defines a scalable network?
A scalable network is built to support high-altitude environments, including skyscrapers and satellite dishes on mountains. |
A scalable network supports redundant connections so that alternative paths are available when a device or link fails. |
A scalable network can expand quickly to support new users and applications without impacting the performance of the service being offered to existing users. |
A scalable network ensures that priorities are matched with the type of communication and its importance to an organization. |
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Question 3 5 pts
(TCO 1) A(n) _____ is either the originating source or destination of a message transmitted over the network.
computer |
VoIP phone |
network printer |
All of the above |
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Question 4 5 pts
(TCO 1) The coming together of technologies onto a single digital platform is called _____.
multiplexing |
internetworks |
joining |
convergence |
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Question 5 5 pts
(TCO 1) A(n) _____ is a collection of computers, printers, routers, switches, and other devices that can communicate with each other over some type of transmission medium.
Intranet |
workgroup |
network |
server room |
Flag this Question
Question 6 5 pts
(TCO 5) What command will display a list of keywords available for viewing the status of an IOS switch?
Switch# sh? |
Switch# help |
Switch# show ? |
Switch# status ? |
Flag this Question
Question 7 5 pts
(TCO 2) Which logical address is used for the delivery of data to a remote network?
Destination MAC address |
Destination IP address |
Source port number |
Source MAC address |
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Question 8 5 pts
(TCO 2) _____ are a form of transmission where one device transmits to all devices within the network or on another network.
Broadcasts |
Encryptions |
Clients |
Caches |
Flag this Question
Question 9 5 pts
(TCO 2) What is the name given to a one-to-many message delivery option?
Broadcast |
Manycast |
Multicast |
Unicast |
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Question 10 5 pts
(TCO 2) Which TCP/IP model layer is responsible for providing the best path through the network?
Application |
Transport |
Internet |
Network access |
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Question 11 10 pts
(TCO 1) Match the named protocol with the PDU it is found in.
Ethernet choices: Data, Packet, Frame, Segment.
HTTP
IP
TCP
In: Electrical Engineering