Power Electronic Devices
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Apr 20, 2020
by
anonymous
Explain the concept of initial and final conditions in switching for L and C.
Last Answer : i) Inductor: The current through an inductor cannot change instantly. If the inductor current is zero just before switching, then whatever may be the applied voltage, just after switching the inductor ... open-circuit. The initial and final conditions are summarized in following table:
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Sep 7, 2018
by
anonymous
Switching of a lamp in house produces noise in the radio. This is because switching operation produces?
Last Answer : Switching of a lamp in house produces noise in the radio. This is because switching operation produces arcs across separating contacts.
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201 views
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Mar 25, 2018
by
anonymous
Explain series switching control of AC load. Single phase resistance load - Integral half cycle control Phase control - Resistance load
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Mar 11, 2018
by
anonymous
Explain switching model of MOSFET.
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Mar 10, 2018
by
anonymous
Explain space vector transformation and space vector switching with the help of diagram. What are the advantages of SVM?
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Mar 10, 2018
by
anonymous
What is a switching impulse?
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Mar 10, 2018
by
anonymous
What Are Input & Output Devices?
Last Answer : Answer :Keyboards, Floppy disk are the examples of input devices. Printer, LED / LCD display, CRT Monitor are the examples of output devices.
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1 answer
What arc the errors occurring in measuring devices due to stray magnetic field and temp '? Explain how to compensate them.
Last Answer : 1. Error due to stray magnetic fields- Main magnetic field gets disturbed by external magnetic fields known as stray magnetic fields. 2. Compensation technique To avoid this error, ... resistance alloy having a negligible resistance temp coefficient in the ratio of 1:10 for pressure coil
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Sep 6, 2018
by
anonymous
What are examples of telecommunication devices?
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Mar 10, 2018
by
anonymous
What are the disadvantages of the linear regulator? how are they overcome in the switching regulator? What is continuous and discontinuous mode switching regulator?
Last Answer : Disadvantages of the linear regulator: Linear regulator waste power in the form of heat. Linear regulator has very low efficiency. Linear regulator cannot be used for the step ... between continuous mode and discontinuous mode switching regulator.
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asked
Feb 11, 2018
by
anonymous
Draw the structural diagram of GTO. Explain briefly the switching behavior of GTO with the help of appropriate voltage and current waveform.
Last Answer : Gate Turn Off Thyristor (GTO) Conventional Thyristor can be turned on with gate terminal but can not turn off from gate terminal. But in case of Gate Turn Off Thyristor (GTO), we can turn it on and off ... subdivided as storage period (Ts), fall period (Tp) and tail period (Tt).
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asked
Aug 8, 2017
by
anonymous
A waveguide termination having VSWR of 1.1 is used to dissipate 100 watts of power. The reflected power will be A) 0.2268 W B) 0.5868 W C) 0.3468 W D) 0.4568 W
Last Answer : A waveguide termination having VSWR of 1.1 is used to dissipate 100 watts of power. The reflected power will be 0.2268 W
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asked
Jun 18, 2018
by
anonymous
The total power of an AM transmitter having a carrier power of 50 W and the percentage of modulation at 80% is A) 50 W B) 66 W C) 68 W D) 70 W
Last Answer : The total power of an AM transmitter having a carrier power of 50 W and the percentage of modulation at 80% is 66 W
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335 views
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asked
Jun 18, 2018
by
anonymous
A snubber circuit is connected to the power semiconductor device to reduce the (A) turn-on time (B) turn-off time (C) electrical stresses (D) thermal resistance
Last Answer : A snubber circuit is connected to the power semiconductor device to reduce the electrical stresses
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1 answer
asked
Apr 28, 2018
by
anonymous
The resolving power of a spectrometer consisting of collimator, a grating and a telescope can be increased by (A) increasing the angular magnification of the telescope (B) increasing the period of the ... (C) decreasing the period of the grating (D) decreasing the slit-width of the collimator
Last Answer : The resolving power of a spectrometer consisting of collimator, a grating and a telescope can be increased by decreasing the period of the grating
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Apr 26, 2018
by
anonymous
What are the types of power losses in inductor?
Last Answer : Copper losses, Eddy current loss, and hysteresis loss are the types of power losses in inductor.
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Mar 8, 2018
by
anonymous
Last Answer : MOSFET have high current losses due to High on state resistance. Hence MOSFET is used for low power applications.
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Sep 22, 2017
by
anonymous
An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W
Last Answer : An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W
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299 views
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asked
Jun 18, 2018
by
anonymous
44 views
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Mar 20, 2020
by
anonymous
Do you think the worst when the power is off?
Last Answer : Power is a big deal here, especially in winter. At various times power has been out for weeks and is very dangerous.
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asked
Mar 5
by
anonymous
Would a priority system for each households power help a power grid?
Last Answer : I’d make freezer and fridge number 1 and internet number 2. My bathroom has a window so it’s not as big of a deal.I also keep lots of LED flashlights handy just in case of power failure. Not perfect, but it works
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1 answer
asked
Mar 5
by
anonymous
What is the priority for home power?
Last Answer : The unit is set to come on automatically when regular power is cut.
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Mar 5
by
anonymous
Where is the nearest nuclear power station to where you live?
Last Answer : There are a few nearby. If a Fukushima like event happened I would have to leave permanently.
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1 answer
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Mar 2
by
anonymous
When the truth becomes not "power", as the saying goes, but a burden, what do you do?
Last Answer : You denounce it as “fake news”.
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1 answer
asked
Mar 2
by
anonymous
What is the power that was flowing from Jesus?
Last Answer : A vision, and a magnetic gift in trouble times.
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asked
Mar 2
by
anonymous
Is there an official Dragon Ball Power Level list on some websites?
Last Answer : I'd be surprised if there weren't a role-playing game that defines such. [Zaku Googles Dragon Ball Power Level RPG ... Oh, yep, there is. For example, here ] How official it is beyond that game, I don' ... 30,000,000 Android 18: 30,000,000 Android 19: 10,000,000 Android 20 (Dr. Gero): 10,000,000
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1 answer
asked
Mar 2
by
anonymous
How much power can you be trusted with?
Last Answer : I went power mad as a night manager at a convenience store. Too much power. : ) I went slowly insane. It was a taste of true power. I don’t want that much responsibility and power ever again.
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Mar 2
by
anonymous
Should some/all of Trump's power, as POTUS, be taken away until it is clear that he is not colluding with Russia? (DETAILS )
Last Answer : The policies he is enacting/wants to enact (killing scientific and medical research funding, destroying education, destroying environmental and consumer protection, rolling back women's rights, installing corporate ... circumstance to Putin, which is why the KGB guy helped the Orange on the throne.
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asked
Mar 1
by
anonymous
Do you think Trump is shocked about how little power he actually has as president, compared to when he was a private citizen?
Last Answer : answer:Yes, I do think it was a rude awakening. I also think that all those who attain the office probably suffer from the same feelings to some degree.
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1 answer
asked
Mar 1
by
anonymous
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Do anyone know of an online site where you can calculate usable power from a given sized solar cell?
Last Answer : Watt’s Law may hold the answer you seek. (W = Watts (power), I = Amps, E = volts) W = E x I, E = W/I, I = W/E. 746 Watts = 1 horsepower.
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asked
Mar 1
by
anonymous
Do the minions that prop up a dictator or czar, etc. want the perks of power a dictator has but not the authority?
Last Answer : answer:Generally, yes. That is why smart people avoid high office. I mean, in the comics, Lex Luthor considered being President of the United States a demotion compared to his overt power as CEO of LexCorp ... . Why make yourself a target when you can have all of the perks without most of the risks?
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1 answer
asked
Mar 1
by
anonymous
What do you do in a power outage?
Last Answer : I play diablo 2… and drink water.
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1 answer
asked
Feb 28
by
anonymous
What does it feel like to have absoulte power and control of your own life?
Last Answer : It’s a high no chemical, no herb, no fantasy can equal. To lose that place is a gut wrenching loss.
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1 answer
asked
Feb 28
by
anonymous
How does "selling wind power" work?
Last Answer : Seems like the power company would have records of where they buy the power from. If it is a public company I would assume the information can be requested by the public to see what power s bought ... public, the thing that might vary is what percentage of wind power is purchased from week to week.
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Feb 28
by
anonymous
What are some sources of unconventional nuclear power?
Last Answer : edited by me.
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Feb 27
by
anonymous
May 18th is the 32nd anniversary of the eruption of Mt. St. Helens. Have you ever experienced or witnessed the awesome power of nature?
Last Answer : luckily the closest thing to that was when our above ground swimming pool blew a seam and water went everywhere. Still waiting for a tornado.
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asked
Feb 27
by
anonymous
If the power goes out, can you still run your gas appliances?
Last Answer : No.
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Feb 27
by
anonymous
Do you have any interesting stories about the power going out?
Last Answer : Ice storm knocked out power to three states just before I moved to Seattle. I spent my last week in NH in the middle of the woods with no heat or water. That was an interesting week.
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asked
Feb 27
by
anonymous
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What is the best way to power appliances during a long term power outage?
Last Answer : Generator. But, buy one in the “off-season” to get a better deal and buy one that is big enough to cover essentials in your home. The good people at Lowes will assist you and generally, they are the cheapest in town. Compare their price to WalMarts.
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1 answer
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Feb 27
by
anonymous
What is the difference between power and authority?
Last Answer : answer:Authority has more of a connotation of being granted by a governing body or an electorate. Power can just be grabbed. So, someone might have the power to do something, but not the authority.
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1 answer
asked
Feb 27
by
anonymous
How would you keep total power, if you had it, from corrupting you?
Last Answer : answer:we are already corrupt, and have somebody in our lives that really annoys us to tears. Or has taken advantage of a situation. I dont think I would be Medusa, but there are a few people that have been very nasty that need to be kicked in the shins.
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Feb 27
by
anonymous
Is nuclear power a sustainable energy source?
Last Answer : Fission, no. Finite uranium resources. Fusion however, yes.
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asked
Feb 27
by
anonymous
My Toshiba Sattelite A205 power port is broken and I have no way of charging my laptop. Will a Toshiba Express Port Replicator be able to charge it?
Last Answer : The Satellite models that are listed as compatible with the Express Port Replicator are the following: R20, R25; Satellite Pro S300, S300M; Portege M400, M405, M700 and M750; Tecra A9, A10, M7, M9, M10 and R10 series portable computers. Since the A205 isn’t listed my guess is no.
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1 answer
asked
Feb 27
by
anonymous
About usb hub connector... whay does this things have a power income?
Last Answer : a non feeded hub doesn’t supply the power needed to charge an iPod etc. it does however have the native power to feed data through, but without a feeded hub i wouldn’t be able to, for instance, charge 4 iPods at the same time
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1 answer
asked
Feb 26
by
anonymous
How do you posses power over others?
Last Answer : I would believe if one wanted to posses power over others you would make them believe that they cannot do without you. You would listen and tell them what they wanted to hear and give them what ... and most of all know that our future will be more comfortable and our environment saver and cleaner.
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1 answer
asked
Feb 26
by
anonymous
Why power plugs pins have small holes in the end?
Last Answer : I don’t know the answer but I would love too.
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1 answer
asked
Feb 26
by
anonymous
Warning! This might be a noob question... Is it possible to increase the CPU/processing power on the iPhone with a 3rd party accessory of some kind?
Last Answer : You can’t alter hardware through software. Perhaps some sort of overclock is possible but that’s probably not recommended.
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asked
Feb 26
by
anonymous
My power button is stuck?Any ideas on how to fix it?
Last Answer : answer:lick it! Just kidding. Take it into an Apple store.
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asked
Feb 14
by
anonymous
Do you think that if women bared their breasts like in more primitive cultures, it would take away the mystery and "power" they have over men, as well as the influence they have on our lives daily?
Last Answer : answer:Its too late to change our mentality. Maybe if this was started around the time of Jesus it would work, but now that person would either get shunned or get raped. Also, reproductive organs send innate signals to a guys brain that says to get hard andbe horny.
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asked
Feb 14
by
anonymous
