In an alternator at lagging power factor the generated voltage per phase as compared to that at unity power factor?
Last Answer : In an alternator, at lagging power factor the generated voltage per phase as compared to that at unity power factor must be more than terminal voltage.
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524 views
1 answer
asked
Mar 18, 2018
by
anonymous
Synchronous motor always runs at which speed?
Last Answer : Synchronous motor always runs at synchronous speed.
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90 views
1 answer
asked
Mar 18, 2018
by
anonymous
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Is the speed of alternator is directly proportional to frequency?
Last Answer : Yes, speed of alternator is directly proportional to frequency.
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126 views
1 answer
asked
Mar 18, 2018
by
anonymous
applications of RC coupled amplifier
Last Answer : Applications of RC coupled amplifier: (i) Widely used as Voltage amplifiers. (ii) They are used in Public Address System. (iii) In Tape recorders. (iv) In stereo amplifiers (v) In T.V. V.C.R. and C.D. Players.
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92 views
1 answer
asked
Sep 3, 2019
by
anonymous
advantages and disadvantages of direct coupled amplifier over RC coupled amplifier.
Last Answer : Advantages: Due to absence of coupling capacitors, the gain does not reduce on the lower frequency side. This amplifier can amplify dc signals. Reduced cost and complexity due to absence of ... The output waveform has a dc shift. Poor frequency response at a higher frequency.
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612 views
1 answer
asked
Aug 19, 2019
by
anonymous
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transformer coupled amplifier
Last Answer : transformer coupled amplifier
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94 views
1 answer
asked
Aug 19, 2019
by
anonymous
State the need of multistage amplifier. Draw frequency response of R-C coupled amplifier.
Last Answer : The need of multistage amplifier The voltage (or power) gain, obtained from a single stage small signal amplifier, is limited. Therefore, it is not sufficient for all practical applications. Therefore, in ... to use a MULTISTAGE AMPLIFIER . Frequency response of R-C coupled amplifier.
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168 views
1 answer
asked
Sep 5, 2018
by
anonymous
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State the need of cascade amplifier and draw circuit diagram of 2-stage direct coupled amplifier.
Last Answer : Need:- The voltage (or power) gain, obtained from a single stage small signal amplifier, is limited. Therefore, it is not sufficient for all practical applications. Therefore, in order to obtain greater voltage and power gain, cascade amplifiers are used.
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512 views
1 answer
asked
Sep 5, 2018
by
anonymous
Compare RC coupled, transformer coupled and direct coupled amplifier based on four points.
Last Answer : Parameter RC coupled Transformer coupled Direct coupled Coupling element Resistor and capacitor Transformer No element Impedance matching Poor Excellent good Frequency ... Low frequency amplifier,opamp Size and cost small Large and bulky least
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3.0k views
1 answer
asked
Sep 5, 2018
by
anonymous
List the advantages of RC coupled amplifier.
Last Answer : Advantages: 1. The frequency response is excellent 2. The circuit is very compact and extremely light 3. Cost is low because it employ resistors and capacitors which are cheap
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110 views
1 answer
asked
Sep 4, 2018
by
anonymous
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Explain DC coupled drive circuit with unipolar output.
Last Answer : DC coupled drive circuit with unipolar output: The figure shows the circuit and waveforms
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515 views
1 answer
asked
Feb 19, 2018
by
anonymous
In an AC. circuit, a low value of kVAR compared with kW indicates?
Last Answer : In an AC. circuit, a low value of kVAR compared with kW indicates high power factor.
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713 views
1 answer
asked
Mar 25, 2018
by
anonymous
Last Answer : In main line service as compared to urban and suburban service distance between the stops is more, maximum speed reached is high, acceleration and retardation rates are low.
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64 views
1 answer
asked
Mar 22, 2018
by
anonymous
Last Answer : A.C. series motor as compared to D.C. series motor has smaller brush width, less number of field turns, more number of armature turns, less air gap.
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136 views
1 answer
asked
Mar 20, 2018
by
anonymous
Last Answer : When a conductor carries more current on the surface as compared to core, it is due to skin effect.
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172 views
1 answer
asked
Mar 20, 2018
by
anonymous
Last Answer : H.R.C. fuse, as compared to a rewirable fuse, has no ageing effect, high speed of operation, high rupturing capacity.
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118 views
1 answer
asked
Mar 20, 2018
by
anonymous
What is an alternator?
Last Answer : Ans. Alternator is a machine which converts mechanical energy into electrical energy
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5 views
1 answer
State working principle of alternator. State the meaning self and separate excitation.
Last Answer : Working principle of alternator: When a conductor is moved in magnetic field or a magnetic field moved with respect to conductor, according to Faraday's law of electromagnetic induction, the conductor ... like battery or shaft-mounted exciter, then the excitation is said to be separate excitation.
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176 views
1 answer
asked
May 27, 2020
by
anonymous
Define armature reaction in an alternator. Explain the effect of armature reaction at various P.F. of loads of alternator.
Last Answer : Armature Reaction: The effect of armature flux on main flux is called as armature reaction. Armature Reaction at Various Power Factors: When armature is loaded, the armature flux modifies ... lagging p.f. For capacitive loads the effect of flux is partly distorting and partly strengthening.
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421 views
1 answer
asked
May 7, 2020
by
anonymous
Draw equivalent circuit of alternator.
Last Answer : Equivalent circuit of alternator
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259 views
1 answer
asked
May 6, 2020
by
anonymous
Explain the construction of alternator with neat diagram.
Last Answer : Diagram: Construction of three phase alternator: Construction wise, an alternator generally consists of field poles placed on the rotating fixture of the machine i.e. rotor as shown in the ... of rotor used in construction of alternator, 1. Salient pole type. 2. Cylindrical rotor type.
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316 views
1 answer
asked
Jul 30, 2019
by
anonymous
Alternator
Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
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63 views
1 answer
asked
Jul 6, 2019
by
anonymous
What is the frequency of an alternator which has 2 poles and makes 3600 revolutions per minute? A) 3600 HZ B) 60 Hz C) 120 Hz D) None of these
Last Answer : What is the frequency of an alternator which has 2 poles and makes 3600 revolutions per minute? A) 3600 HZ B) 60 Hz C) 120 Hz D) None of these
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2.6k views
1 answer
asked
Apr 29, 2018
by
anonymous
While keeping the excitation constant, if the steam supply of an alternator running in parallel with another identical alternator is increased, then (A) It would over-run the other alternator (B) Its rotor ... (C) Its portion of share in load will increase (D) Its power factor would be decreased.
Last Answer : While keeping the excitation constant, if the steam supply of an alternator running in parallel with another identical alternator is increased, then Its portion of share in load will increase
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430 views
1 answer
asked
Apr 28, 2018
by
anonymous
The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7
Last Answer : The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is 6/7
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495 views
1 answer
asked
Apr 28, 2018
by
anonymous
At which power factor alternator is said to be overexcited?
Last Answer : At leading power factor alternator is said to be overexcited.
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97 views
1 answer
asked
Mar 18, 2018
by
anonymous
The power factor of an alternator depends on?
Last Answer : The power factor of an alternator depends on load.
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116 views
1 answer
asked
Mar 18, 2018
by
anonymous
The magnitude of various voltage drops that occur in an alternator depends on?
Last Answer : The magnitude of various voltage drops that occur in an alternator depends on load current.
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594 views
1 answer
asked
Mar 18, 2018
by
anonymous
In alternator where the voltage drop occurs?
Last Answer : In alternator voltage drop occurs in armature resistance, leakage reactance, and armature reactance.
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139 views
1 answer
asked
Mar 18, 2018
by
anonymous
What causes diodes to fail in alternator?
Last Answer : alternator
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77 views
1 answer
asked
Mar 15, 2018
by
anonymous
Why does time seem to slow down when something seriously threatens us?
Last Answer : Maybe adrenaline makes a person focus?
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1 view
1 answer
asked
Feb 28
by
anonymous
Is there such a thing as slow hearing?
Last Answer : answer:As we get older, the brain's processing centers slow down. Speech and language are very complex, and if you have even a slight age-ralated decrease in hearing, and the brain ... people have difficulty with auditory processing even in childhood, and auditory processing skills can be tested.
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1 view
1 answer
asked
Feb 27
by
anonymous
Fluther seems to have attracted many different people over the years with one thing in common - intelligence - at least those who've stayed a while - but is there anyone here who would like to admit to being "slow" or different?
Last Answer : I'm like Dory on Finding Nemo. I'm really intuitive about some things and a total airhead about others. The things I do know I know really well though. Growing up I was always in the ... ) overcoming all my hangups about physical agility and athleticism and walked a marathon and have taken up yoga.
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0 views
1 answer
asked
Feb 27
by
anonymous
Is fluther always this slow?
Last Answer : Depends on where and when people sign on here, as you know, fluther is sort of international so it depends on which time zone you are ! But at this time, yea, i would say its slower than usual
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0 views
1 answer
asked
Feb 27
by
anonymous
Why is Internet Explorer really slow?
Last Answer : Because it's shitty honestly. Internet Explorer is a baseline amenity with computers. It's like the free anti-virus software you get when you buy a new laptop - it works for about 3 days ... excellence. Internet Explorer is the baseline stuff for everyone-those who choose to not soar higher, lol!
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1 view
1 answer
asked
Feb 27
by
anonymous
Does having too many add-ons slow Firefox down or make it crash?
Last Answer : Sorry in advance for grammar, I'm typing on my phone. Add-ons can slow Firefox's initial startup time, but actual load times of pages shouldn't take any additional time. Have you downloaded any add ... two open Firefox windows. The other posible cause is a virus or malware . Dun, dun, duuuuun!
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2 views
1 answer
asked
Feb 26
by
anonymous
Why is YouTube so slow?
Last Answer : Are you watching them on the edge network?
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2 views
1 answer
asked
Feb 14
by
anonymous
How to Fix a Slow Toilet
Last Answer : How to Fix a Slow Toilet Biological waste does not deserve to stay long in your toilet bowl. It should be flushed out immediately, given the odor it creates, which makes your comfort room quite ... when you had to endure the biological warfare waged by your toilet. It cannot win, not ever.
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6 views
1 answer
asked
May 10, 2021
by
anonymous
How to Slow Your Heart Rate ?
Last Answer : How to Slow Your Heart Rate Tachycardia or palpitation is a condition where your heart rate is higher than the normal value of 60-100 beats per minute (bpm) . This is usually a symptom ... An early detection of any illness is very important to prevent it from getting worse and avoid complications.
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7 views
1 answer
asked
May 9, 2021
by
anonymous
How to Slow Your Metabolism ?
Last Answer : How to Slow Your Metabolism Many people are concerned about losing weight and increasing their metabolism. There are numerous ways to achieve these goals. What do you do then, if instead of speeding ... is still fast. You might have a health condition that needs to be treated, like hyperthyroidism.
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2 views
1 answer
asked
May 8, 2021
by
anonymous
What are some realiable ways to become financially independent?
Last Answer : Get adopted by Bill and Melinda Gates.
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1 view
1 answer
asked
Feb 28
by
anonymous
Are you patient and polite with slower people?
Last Answer : Yes, but I do get very impatient and complain in my head.
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0 views
1 answer
asked
Feb 27
by
anonymous
Why can't I load an app onto my Kindle fire?
Last Answer : Hmmm, you’re sure you’re not entering anything with typos? I’ve never had this issue with my Fire tablet.
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1 view
1 answer
asked
Feb 27
by
anonymous
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Why do people seem to speak too fast when they talk to me?
Last Answer : answer:It's personality and temperament style. More extroverted types tend to think and talk fast and more introverted types often need more time to process and mull over what they wish to say. I am ... are! Your style is your style and there are plenty of others that share your same presentation.
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1 view
1 answer
asked
Feb 27
by
anonymous
Can you/do you make decisions quickly?
Last Answer : answer:Sure - although at times I feel like I might be making the decision hastily. Now, did you just look at the tvs, or at all the specifications? Did you understand all of the functions? ... can do. So realize that sometimes you want someone there who is stopping you from making hasty decisions.
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1 view
1 answer
asked
Feb 27
by
anonymous
When you wake up on a morning, do you get up in stages or jump out of bed as soon as your eyes are open?
Last Answer : If I’ve got to be to work then I get up right away and push push push until I hit the road. Only when I work later in the morning do I let myself schlep about in bed and enjoy the absolute wonder of snuggling. Ahhhh.
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0 views
1 answer
asked
Feb 27
by
anonymous
What Mp3 player should I get?
Last Answer : Well, there’s this… http://www.walmart.com/ip/Ematic-8GB-Touch-Screen-Video-MP3-Player-with-5MP-Camera/13070375
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1 view
1 answer
asked
Feb 27
by
anonymous
What is your opinion on the 3.1 iPod Touch upgrade?
Last Answer : Patience is virtue And so is the iPod touch 3.1 upgrade
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1 view
1 answer
asked
Feb 27
by
anonymous
Why is my MBP booting slower than my older iMac?
Last Answer : I just booted in a minute now, I don’t know why. Still a bit slow, but better than 1:43.4… Does anyone have some tips for speeding this thing up?
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2 views
1 answer
asked
Feb 26
by
anonymous
Do icons on the mac dock make the computer slower?
Last Answer : No. Running a lot of Dashboard widgets will, but not having icons in the Dock. Having said that – check to see if your Dock icons indicate an application is running by looking for a “light” under its icon. If it’s running and you don’t need it, quit the app.
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1 view
1 answer
asked
Feb 14
by
anonymous
