lal
@lal-R60Xjx Member
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Something confuses me an exam ..
Yes, it would, and note that it is true only if you keep the reference of measurement same in both cases. If A and B are...
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Something confuses me an exam ..
Why don't you start by represeting those networks as two equivalent Norton circuits and equate? Let us know what relations you come up with. For instance,...
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Nostalgia creeping in.. Old CEans, how are you all doing? :)
Ah! I remember spending a really long stretch of time reading and investigating the whole CE Bot thread, in one go. That thread is one of...
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Nostalgia creeping in.. Old CEans, how are you all doing? :)
Awesome! Feels home again.#-Link-Snipped-# yes, the classic login was being missed, big time! :D
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Why does the glow of lamps becomes weaker when heavy current appliance is switched on?
#-Link-Snipped-# What happens if a wire is loaded to 20A that is designed to carry only 10A? You do the math.
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DC MOTOR CONTROLLED DOOR
What kind of door are you trying to use the motor with; sliding, conventional or what?
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[POLL] Should 3.5mm headphone jack go or stay?
I seriously fail to see an advantage there except for any space that could be saved by removing the jack. A phone will have far better...
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[POLL] Should 3.5mm headphone jack go or stay?
Anoop Kumar Headphone Jack 3.5 required digital to analog conversion. Not required if we are looking for true experience. I didn't understand what you meant there....
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[POLL] Should 3.5mm headphone jack go or stay?
USB ports evolved, Charging ports evolved, technology itself evolved, but the 3.5 mm Analog Audio Output port stayed strong for decades. It looks a little big...
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Spam Attack on CrazyEngineers
Could there be some filter which prevents posting new threads with hyperlinks, or some common spam words until a mod approves it?
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What happens to mobile phones with non-replaceable battery ?
Kaustubh KatdareHas anyone among us ever got a 'non-replaceable' battery replaced? I think most of the modern Li-Ion batteries used in mobile phones and laptops have...
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Voice Controlled Personal Assistant using Raspberry Pi
Karthic CMKnowledge is meant to be shared.Knowledge is, but not the source code 😁 unless the person who did all the hard work is very generous!
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Ground Fault Problem
DroopyThat's when I noticed that when I checked voltages to ground, instead of reading 277 on each phase, I would read 480V on two legs and...
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Problem in Programmer
Does the programmer get detected by the flashing software? Or does it not have to? PS: I do not have any experience with 89c51 and its...
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Visiting Bangalore | 29th Nov - 4th Dec 2016
I might have to visit again. Will definitely make sure to drop a comment if that is the case.
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Visiting Bangalore | 29th Nov - 4th Dec 2016
Oh, snap! I just returned after a few days' stay yesterday 😖
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why we connect voltmeter in parallel with series connection of diode and ammeter for reverse biasing
Question: What are the significance of readings you get from those metres in the mentioned configurations? Or what do the readings mean?
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Can someone explain Raspberry Pi3?
Those are like your cellphone. But quite a lot tweakable than that. The processing power is comparable to your cellphone, but the direct access to hardware...
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CrazyEngineers IO Web Apps - A Bit In More Detail
That is great. There are a lot more possibilities than career guidance, resume building and managing to do list and those should be concentrated much too....
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Power systems engineering project ideas
Rather than finding a random project, I believe the best source is your mind itself. In between your studies or industrial visits or internships, you would...
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What is the use of core in a transformer?
Vipin vermaYes I found, Transformer can be design without core, But losses will more occurs, that's why we use core for better efficiency.I assume you know...
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What is the use of core in a transformer?
Vipin vermaPlz, try to do practical and then find ans. Never says to anyone, Transformer can't design without core. It's proved, a transformer can design without...
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Signed up on IO? Tell the world here!
Is pending review and under review the same? I have "pending review" for the last 24 hours.
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CrazyEngineers IO Related Questions and Answers
I see, so money is brought in to the scene! So what are the legalities, terms and conditions?
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What is the use of core in a transformer?
There are a few things which make core an invaluable part of a transformer. I am hoping you are aware that induction of voltage in the...
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Advice for project using raspberry pi or arduino
I couldn't find the links to those discussions specifically, I don't remember the thread titles. But there was this animated Pixar desk lamp project someone did...
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Advice for project using raspberry pi or arduino
I couldn't find the links to those discussions specifically, I don't remember the thread titles. But there was this animated Pixar desk lamp project someone did...
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Advice for project using raspberry pi or arduino
It is fairly impossible to give simple answers to those questions. The kind of money, effort and time you'll need to spend will depend on the...
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Why is the charge transmitted by electrons and not protons?
Protons are bound inside the nucleus not really able to move. If you want them out, that's like breaking the nucleus which would generate a lot...
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ideas about vehicle running without fuel
Don't we have the bicycle for that 😁 Alright, Electrical energy is already being used in place of fossil fuels. People have created spring would vehicles,...
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INTERRUPTS- PIC16F877A
I cannot comment on the code. I never had experience coding in MikroC. I write in assembly. By the way, does PIC respond to external interrupt?
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INTERRUPTS- PIC16F877A
Yes, you can. For all the interrupts, PC will point to 04h and you will need to further check the flags to see what action caused...
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New Non-destructive Industrial Testing Technique Devised
I didn't know measuring electrical properties included destruction of material 😐 I was actually hoping to read about non destructive test methods to find mechanical properties...
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I must know some interesting facts about GTO thyristor-controlled series capacitors
Could that in any way be related to Capacitor Discharge Ignition used in vehicles? It seems so to me. Check this <a href="https://en.wikipedia.org/wiki/Capacitor_discharge_ignition...
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How to identify 4G SIM card?
Any Idea which band shall be used by Idea to launch its 4G services? Heard not all phones support all bands. Especially the 850MHz band. IIRC,...
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Permanent battery in cellphones - solar panel
I have seen that on many power banks too. There would be a solar panel and even in the shadows, the charging led will be blinking....
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motor selection for a particular load
You have to figure out the maximum speed and torque you require on the wheels. They you got to figure out if you're going to use...
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World's Cheapest Smartphone At Rs. 251 - Freedom 251 Touted To Ring Bells of Revolution
Koushal PatelI repeat, we have a very sophisticated government approval process of allowing these kind of stuffs in the market.And are you sure the government and...
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World's Cheapest Smartphone At Rs. 251 - Freedom 251 Touted To Ring Bells of Revolution
Let some conspiracy bloom too. Some unknown underground agency is funding the company to create the largest and most effective spy network over India 😁 By...
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How to calculate unit of motor?
Directly calculating motor power using the formula to deduce power cannot be used as converter output will be having a different voltage than the input. So...
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Permanent battery in cellphones - solar panel
The simplest answer could be, current technology of photovoltaic cells aren't capable enough to do that. The amount of electrical energy that could be generated from...
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hybrid vehicles Bhev
Interesting project. How much have you progressed with it? Do you plan to start building from the base or modify an existing car for the time...
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How to calculate unit of motor?
Around 7kW if voltage is assumed to be 415V, 3phase, power factor to be 0.8 lagging and inverter efficiency around 80℅.
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How to calculate unit of motor?
Did you say the input current of drive from its spec? If so, it would not be more than the mentioned value unless overloaded!
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How to calculate unit of motor?
Wait, it looks like I have perceived 'drive' the wrong way. Is drive simply a star-delta starter or a power electronic motor controller? And I assume...
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How to calculate unit of motor?
When you calculate the power at input and output, you'll see the output is lesser than the input due to losses. Anyway, to answer the question,...
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Tata Sky DTH Signal Disruption In Rain - Any Solution?
Ankita KatdareWhy don't the service providers employ this solution? Are there any obvious disadvantages to it?Yes, the biggest advantage of using 'Ku' band is the ability...
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How to calculate unit of motor?
Input it would be. Motor and drive together should be considered. Drive would be dissipating a part of the energy it consumes as heat (losses) and...
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Carrying out FAT at Site instead of at factory
Well, ideally FAT is conducted at the manufacturing facility itself. But then, if the vendor and client are in to some kind of agreement, FAT and...
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Remote Control Mouse Using TV Remote
There is an open source package called "LIRC" which could be used to send and receive IR signals using a computer. You could read the wiki...
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What is the difference between pressure and stress?
Ankita Katdare#-Link-Snipped-# Could you share your views here?It seems like there is nothing extra I could add to this discussion. I only had an understanding that...
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LEDs..cheaper or costly..?
LEDs are supposed to be driven controllably. Usually closed loop current or temperature controlled circuits are used to drive LEDs. This itself is the main reason...
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Current, Voltage & Resistance
It would be more meaningful the other way. Potential difference (pd) is the driving force for current. That is, current is directly proportional to voltage. But,...
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Current, Voltage & Resistance
Why don't you try state Ohm's law and post what you understand. We'll work from there!
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Tata Sky DTH Signal Disruption In Rain - Any Solution?
Ankita KatdareI was just wondering if there was a way to minimise the effect of rains on DTH signals. A friend just called up to say...
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What is power zerk (transients)? Why does it happen?
Well, mostly the sources for transients are load fluctuations. Sometimes faults which are not directly in the immediate network of the power system can cause it...
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What is power zerk (transients)? Why does it happen?
Is it transient/spike that you are talking about? Could you please link some document or source which describes "power zerk"?
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What is power zerk (transients)? Why does it happen?
That sounds like a total new thing to me. Could you explain a bit please?
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Circuit to remotely control an electric switch
It looks to me that circuit breaker will trip the very instant H-switch is switched On or Relay-2 is powered from the wiring diagram. I see...
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How to unlist or remove my number from TrueCaller database? [Tutorial]
Oh well, none of the numbers I unlisted used their app. May be that's why those numbers could be unlisted. By installing the app, user may...
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How to unlist or remove my number from TrueCaller database? [Tutorial]
Ankita KatdareNote: The TrueCaller developers have made the appropriate changes and now proper verification is required to remove a number from the database.I think no verification...
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Happy Birthday, Ankita!
Happy birthday AkD 😁 Wish you all prosperity and success ahead
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CrazyEngineers Turns 10 Today
Happy B'day CEans 🎉 And happy B'day the good admin 😁 Wishing everyone all prosperity and awesomeness ahead!
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Conversion of UPS in Stabilizer.
Yes, you can replace the battery with a rectifier. But, be warned, that's a lot of current your rectifier has to deal with. And an extra...
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Why is a Rolex Watch So Expensive?
Kaustubh KatdareI think these must be preserved as I really think they will be extinct in the next 20 years. Smartphones and now the smartwatches will...
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16x2 lcd not responding properly
Yes, it is. Use a source with higher current capacity. What is the maximum current capacity of the DC adapter you are using now and is...
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Best way to transfer money abroad or make international payment from India
That looks workable! I will try CoinPip someday soon, hopefully, if a requirement pops up.
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Best way to transfer money abroad or make international payment from India
Oops! Sorry, I was not trying to derail the other thread! I haven't found any money transfer service like WesternUnion or MoneyGram which can legally transfer...
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How humans are driving the sixth mass extinction
I guess that would be technologies for communication (I'm not talking about 4G), power generation and medical diagnosis. Then, everyone has different priorities 😒 Or everything.....
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Online UPS Vs Enumerble Voltage Stabilizers
Should you consider using an Isolation transformer and a servo stabiliser 😁 That would take stabilisation to industrial levels, at least to some extent. But, seriously...
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Best way to transfer money abroad or make international payment from India
I have been quite desperately investigating for methods to transfer money abroad and pay merchants abroad. PayPal can be used if you gets lucky that your...
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How humans are driving the sixth mass extinction
davefrancoWe have to change our self if we want to avoid this situation.We know it, and still we don't! Humans act late! And it is usually...
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How To Take A Good Selfie? This Deep Neural Network Has The Answers
Even if artificial intelligence is considered analogous to human intelligence in some way, the fact is, every person's taste varies and it is like one person...
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HELP! My Phone which 'Died' came back to Life!
😁 Sometimes I feel, a lot of technology can be unreliable. I stress 'sometimes'. Things are becoming more complex (and better performing too) day by day....
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Optimizing the design of a magnetic circuit actuator
I cannot comment on that now. Will have to find my text books and start reading again 😁
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Optimizing the design of a magnetic circuit actuator
AgarAlso if B = flux/Area, then is BcoreBCDA = Bgt because they have the same flux and area ?I'm not quite sure about that. But I...
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What is the concept of Live and Neutral Wires?
vamsi kancharlacurrent flows from high potential to lower potential so current flows from phase to neutralHalf of that is true "Current flows from higher to lower...
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Optimizing the design of a magnetic circuit actuator
AgarBut I can't change the design, although I can change the top airgap. I'm guessing I should make it as small as possible so that the...
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Optimizing the design of a magnetic circuit actuator
A larger gap would mean higher reluctance. But that would also mean less flux passing through that branch (path ABCD) as there is a very much...
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Optimizing the design of a magnetic circuit actuator
I tried a quick calculation. I got mmf drop in Rgt to be around 89 and that in Rgc to be 660. By the way, I...
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Optimizing the design of a magnetic circuit actuator
Definitely the flux will not be divided equally between the limbs, due to non uniform reluctance in the paths. But, I assume by carefully designing the...
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Speed Control Of Wiper Motor
What is the whole system is made closed loop. Implement some method to mechanically wipe the water drop sensor at the same rate wiper operates (might...
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The Great Indian Call Drop Issue - What's The Fix?
All I can think of are bandwidth limitations and less capable transducers. Bandwidth could be one big issue, India being one of the countries with most...
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Burning code into 8051 chip?
I read somewhere that with an RS232 voltage level shifter chip in between, serial communication could be achieved with 8051 from PC and the same channel...
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What to do after I have learnt the basics of circuits?
Parallel, series circuits and basic circuit parameters, excellent. I would suggest you get in touch with semiconductor devices and then to electromechanical devices like motors and...
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Samsung May Announce World's First Foldable Phone In January
Don't you think they already have, ten years back! 😁 Image copied from GsmArena
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Any advantage of putting vehicle on centre stand over the side stand?
Once an "automobile freak" friend commented, high-speed racing motor bikes have only centre stand. Using a side stand would make the load acting on bearings and...
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Producing energy from ceiling fan by using brushless dc motor
I would suggest you do some rough calculations and consider real life scenarios before continuing or planning items for the project. A normal PC fan wouldn't...
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Producing energy from ceiling fan by using brushless dc motor
Is it a miniature windmill that will be operated by the wind generated by ceiling fan that is in your mind?
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Now Use SanDisk Pen Drive Without Connecting It To The Device
Although it sounds interesting, it is unclear what kind of wireless connection would facilitate access to the device and data transfer. Would it be WiFi or...
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What happens to mobile phones with non-replaceable battery ?
Off-topic: But it seems Samsung wouldn't last that long, seeing the way its flagship phones fail to impress the crowd and better quality and open phones...
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COMMUNITY
This thread is in the wrong section, move to puzzles! 😁 Jokes apart, could you please try to explain or frame that question in a different...
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design consideration of washing machine control
There will be many key factors to consider when designing a machine. It would range from choosing the apt screws to designing the electrical control system....
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design consideration of washing machine control
Could you explain about that a little more. Do you want to change the way it works now or bring in some additions?
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Congratulations To CEan Ankita Katdare On Passing Japanese N2 Exam!
Congratulations! 😁
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Android M Features Overview
The app permission made me remember the old Symbian devices "This application is trying to access the camera. Grant access? Yes... No" 😁
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electricity-wifi
Visible light is an electromagnetic wave. Electrical energy can already be harnessed from light using Photovoltaic cells. Light cannot be used feasibly for electrical energy transf...
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electricity-wifi
Short answer: Yes. It has been used even ages before wireless communication came in to existence and still is being used. You should review the principle...
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VA output of a ups after 3 years of usage
The output capacity of the UPS will not be affected much by ageing. But, definitely the backup capacity of batteries could be significantly lowered depending on...
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Engine Sound
That is the catalytic converter. That is what some one said the last time I asked. I have examined my Bike a few times to find...
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Can we use internet wires to transfer the stored electric power ?
You can definitely send signals over a power line. So internet can happen over powerlines. But what would limit the possibility of sending power over existing...
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Happy Birthday Ramani Sir!
Happy Birthday sir. Wish you have wonderful days ahead..
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three pin and two pin plugs
I cannot fully agree with you. Earthing of an equipment is not done to neutralise energy stored in inductive loads. Earthing is done in any electrical...
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Calculating energy loss
I wouldn't doubt it remains a threat to the PC. We, the humans, have been using mere 12V or even 6V batteries safely to create alternating...
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No-contact chargers for electric toothbrushes
You have answered the question yourselves. Wireless charging is less efficient, costlier and requires comparitively complicated circuitry. Oscillating magnetic fields is what tran...
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Calculating energy loss
Guess I'm more comfortable with Degrees than Fahrenheit, hence I didn't take the pain to convert those 😁 I was thinking why wouldn't USB cup warmers...
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