praba230890
@praba230890-vPFAoQ Member
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Replied #Threads
Don't Use Internet Explorer To Browse CrazyEngineers
IE 9 & 10 are pretty OK for now😀 (although I'm not using them😉 ), and they could stay OK for a while until HTML6 or...
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Best PHP Editor & Why?
For a light weight app jEdit is a notable😨 one, but it needs the love of Java👎 to run. PhpStorm and NetBeans were also good to...
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Web development in Java
vinciI am seeking for simple projects in java or any other programming language that would enhance my skills.Also it would test me .but i am unable...
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Book On Algorithms Using C++
Algorithms in C++ by Robert Sedgewick. Found the review #-Link-Snipped-#.
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How To Make A Jsp Page To Run Continuously For Every 2 Minuts
I think you could achieve this using #-Link-Snipped-# (a framework that supports sheduling). Also your task looks simpler, so you could use the solution that I...
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JAVA programming language
Eclipse is too handy to write java based apps, but when it comes to desktop and java based mobile phones it is better to go with...
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Books You Are Reading Right Now
The_Big_KI read that book long ago. Didn't make much sense to me though. If you get time, do post an analysis of the book and the...
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Books You Are Reading Right Now
Edward de bono, Six Thinking Hats. Done reading half of the book, it's quite stuffed and going great.
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Need Code for 'Countdown Timer'
I recently had this code(JS file in attachment as .txt file) for a typical countdown timer. I think you could sort the remaining code out for...
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Getting Started In Web Design & HTML
Although there are large number of online stuffs for learning webdeveloping in w3schools.com , htmldog.com and so sites. I don't recommend these sites if you wanted...
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How does current flow in an AC Circuit.
neo23I am extremely confused about the direction of ac current flow in the circuit. If current reverses its direction for every positive and negative half ,...
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Electrical Machines Book
I too found J.B.Gupta more comfortable to study machines. If you have Gupta book then you don't need any other reference books or something like that....
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About Fuse
YES.....we can use polyfuse instead of conventional fuses. jobinhere#-Link-Snipped-#'m talking about this fuse. Can we replace main fuse(rewirable fuse/mcb) we use near energy me...
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Piezoelectric crystals
First of all sorry for late reply. The output of Piezo crystal is A.C and the output voltage and frequency depends upon the pressure applied. martinpjosewhat...
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Rechargeable battery charging
Talking about the switching of power during fully charged battery condition, i'm sure bout it. For me all devices i've encountered were well fitted with this...
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Rechargeable battery charging
In labs you may have noticed that some IC's keep on heating up with increased usage time. This is what the Electronic devices does, they release...
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Rechargeable battery charging
The main reason for advising to avoid the overcharging is the overheating of the power circuit and the chances for burning out of power circuit. Also...
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Rechargeable battery charging
I am not sure about laptop chargers as i didn't got a chance to open them. In case of mobile chargers i'm pretty sure about it,...
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Why is the power factor needed in ac circuits and hence its correction?
Every electrical engineer must be atleast heard of one of the power factor definition - PF is the cosine of the angle between current and voltage....
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Why is the power factor needed in ac circuits and hence its correction?
No way!!!!!! PF is reduced by inductors but not capacitors. Always capacitors were a good friends to PF(which boosts the power factor). 2592sanjuPF is reduced by...
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Reaching out to engineering colleges - Your feedback needed.
Could you mail me the posters to my mail id so i can take printouts whenever i need and also as much as i need. I...
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Reaching out to engineering colleges - Your feedback needed.
5(for large colleges provide 8-10) posters each with different design sure make an impression on CE. Also try to appoint the campus representative for CE for...
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Rechargeable battery charging
I believe that none of the charger manufacturers using transformer in chargers after the advent of power electronics. aj_ondutyI agree to the fact that laptops and...
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Rechargeable battery charging
The switch doesn't turns off when the battery is full. It just switches the supply directly to laptop and disconnect it from battery. aj_ondutyAfter 100% is...
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power quality improvement
Sorry for the late reply... Yeah we can do so and currently in U.S and some other countries they are implementing along with smart meters/smart grids....
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power quality improvement
Yeah your are right narayana murthy. The regeneration will degrade the power quality if not handled properly. But if you handle it properly you can further...
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Can We Use Bypass Capacitors?
In amplifiers filter capacitors are used to filter the unwanted frequency(noise) from the signal or power. As this filter capacitors are not capable of filter all...
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power quality improvement
I don't know what technical details you are expecting Archu but i tried to give you some. Giving a quality power is not an easy thing....
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solar energy-my views and explanation
The solar panels developed by U.S. Department of Energy can produce electricity even at nights. They were designed to not only convert the direct visible light...
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solar energy-my views and explanation
You are right murthy it's possible to obtain the solar power from outer space for 24*7. Also if we do so there will be high power...
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Use of Internet affecting our memory???
#-Link-Snipped-# just now seen it. Shocking!!! but they were saying that it's not a vital problem (at least for this generation)..... Whats In NameCheck it out:...
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power quality improvement
Power quality mainly degrades by the line losses and some other faults. If we install renewable based power generators all over the country then these faults...
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Generation Of Power Through Footsteps: piezoelectric material
Try this #-Link-Snipped-#. I remember reading this paper 4-5months back as a part of my project. Ravi ThejaI found a paper which would optimize the energy...
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Generation Of Power Through Footsteps: piezoelectric material
you got to update yourself..... that is an old method. Ravi ThejaI found a paper which would optimize the energy generated. Please follow this link. #-Link-Snipped-#
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Sound to electrical energy conversion
I forgot to include the Piezoelectricity and Electromagnetism in the above post. These concepts can give you hands on conversion of sound to elec(don't blame me...
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Sound to electrical energy conversion
No doubt!!!!. You can convert any form of energy into electrical energy and vice versa. That's why Electrical Energy is such a big hit now. Each...
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Wireless charger for laptop & mobile
I remember seeing one of the Intel projects which is a wireless speaker a year ago. In that project Intel demonstrated the wireless power supply for...
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how to overcome electrical subjects
Don't rely on any particular websites to learn. It's better to stick with google and use your searching tactics to get better materials. If you are...
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how to overcome electrical subjects
Good website that you recommended. I got to recommend this site to my relatives doing school. bioramani<a href="https://www.khanacademy.org/#browse" target="_blank" rel="nofollow n...
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need suggestion about transistor project
According to my idea we got to place two leads at a very short distance. These leads should be connected with a battery terminals. Now we...
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choosing the elective subjects
as an ECE student u got to stick with image processing and real time systems. also be good at DSP and image processing as they were...
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need suggestion about transistor project
hey we are using this short circuit mechanism as just a sensor. Just as a control circuit not the driving ckt. praveenscienceHow can a Motor run...
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Which laptop is good to buy?
you might be right. currently i'm using my third laptop(DELL) after using hcl and lenova. to say simply i hated HCL and i struggled with Lenova(heating...
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Magnetic Flux in a generator
The both answers 'yes' and 'no' fits to this question. First we go on with 'no' side. If we connect two rotors to a single stator...
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Why can't electricity be stored?
You have a point. But when we talk about storing electricity without any chemical reaction we got to talk about capacitors. It is not converting it...
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need suggestion about transistor project
I think keeping the two leads near at a level in the tank may help us. It must be a simple circuit. When the water level...
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Without Electricity How To Look For Earth?
[video=youtube;P_BBE-ggjrs]https://www.youtube.com/watch?v=P_BBE-ggjrs[/video]
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Questions Related To Tubelight
Yeah LED is a cool invention which is highly necessary for this century. As we know that lighting is at second next to motors on loads,...
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recent technologies in power electronics
It's a nice idea to drive a pump using solar power. But make sure that the power obtained from the photovoltaics installed for this project is...
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Questions Related To Tubelight
Blackening of TL(tubelights) occur both in thermionic and coldcathode lamps. The main reason is due to sputtering of emission mix. The emission mix is nothing but...
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need suggestion about transistor project
Doing projects using transistors only were getting old. But for sure if you try doing a project which uses transistor for both switching and amplifying applications...
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Why can't electricity be stored?
You are absolutely right Neo. The capacitors were the good storage device for years for lot of purposes. The development of ultra/supercapacitors making the way for...
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Kva & kw
There are two types of inverter outputs we could use. One with pure sine wave and other is distorted one(may be square wave too). The purer...
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Differences b/w Power Supplies
Yeah you may be right saketsingh......but if that is considered for transmission. Here we are talking about distribution of power. Here the load is the deciding...
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understanding capacitors
Basic Electronics and Electrical Technology by B.L. Thereja might help you. tusharatdceGuys,i want to know everything about capacitors and inductors. please refer me a good book.....
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does reversing the polarity of inputs to an adaptor affects its working????
It is A.C you reversed not dc so no matter you reversed the A.C, it should be having both polarity. This A.C is then stepped down...
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Building a H.V. Transmission line.
As Emanresu told 220v isn't a high voltage. H.V is supposed to be greater than 11kv which is't practically possible for an individual to construct. But...
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Kva & kw
We use kva for the representation of Electrical Apparatus ratings(like transformer, relay, etc which doesn't consume power but carry it), while we are using kw for...
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Cryptography and network security
It is better to go on with CISCO books if you want to learn this topics..... #-Link-Snipped-# #-Link-Snipped-# #-Link-Snipped-# msaspirant12Which are the best books and online...
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Input is Out. Skinput is In!
This video explains clearly the skinput.....transmitting acoustic through skin......COOL [video=youtube;g3XPUdW9Ryg]https://www.youtube.com/watch?v=g3XPUdW9Ryg[/video]
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capacitor checker
this video's may help u [video=youtube;GZMQWa0b1xY]https://www.youtube.com/watch?v=GZMQWa0b1xY&feature=mfu_in_order&list=UL[/video] [video=youtube;4iTR-iCn0hY]https://www.youtube...
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WIPRO Technical Interview Experience
Mostly if HR said you to "go now, we will call u later" then that is the end of your interview with NO frm HR. But...
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Differences b/w Power Supplies
We are giving 11KV for commercial and industrial purposes to avoid the overload problem. It is similar to the reason why we are giving 3 phase...
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Input is Out. Skinput is In!
nice invention bioramaniSkinput turns your hand into a touchscreen and your fingers into a keypad #-Link-Snipped-#
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Doubts on Bluetooth detection
Here greater the dbm then better the operation of the device and the negative dbm indicates the loss so we need to use less negative dbm....
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MAKING %) WATTS BULB FROM WATER BOTTLE(zero electricity needed)
amar.amarwhats PV dude..😉PV - Photo Voltaic.....integrating solar panels with this bottle's can make more current.
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Can I get advice and products on piezo electric products? Dance school and energy
here i already made energy using piezoelectric materials. Here i'm giving the link for that <a href="https://mytheoriesarehere.blogspot.com/2011/05/piezoelectric-energy-harvester-...
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problem with basics???
It is literally possible in this bulb case. Voltage is a differential quantity. To measure the voltage of a single point, a reference point must be...
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problem with basics???
<a href="https://en.wikipedia.org/wiki/Single_wire_earth_return" target="_blank" rel="nofollow noopener noreferrer">Single Wire Earth Return</a> In India they implemented SWERS fo...
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Doubts on Bluetooth detection
i'm just giving you the link where you can get good class 1 bluetooth....#-Link-Snipped-# elan_arrthats right but then what maybe the cause for the problem i...
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using only 3 phase AC source device, explain how to control the speed of dc motor
Yeah you are right Arp....if we want four quadrant operation then we need to use 3 phase dual converter drives to drive the motor. In this...
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Human blood acts as mermister
bioramaniBlood is not a homogeneous fluid. It is interesting if there is the mermister effect. In developing biomedical devices with blood contact, it is known that...
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Human blood acts as mermister
Mermister is nothing but a MEMORY RESISTORS which is just a resistor with memory. This memory make's the mermister one of the hot topic as it...
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How to search driver's for our system ?
It's alway's hard to find matching audio driver for most of the system.In that case you better narrow your audio driver search on the type and...
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Human blood acts as mermister
As far as every Electrical and Electronics Engineer known that there are only three basic elements - resistor, capacitor, inductor. But now if you say the...
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how to found break point of railway tracks
Railway track is already a conductor. All you got to do is send some spike voltages periodically and check the continuity of the track. But this...
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Choosing electric motor for rotating platform
If you added the toque due to friction and some other factors while calculation of wheel's required torque then it would be the same as the...
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problem with basics???
Yes you are right all we needed is to create a voltage difference to let the current flow. Here if you put the negative terminal at...
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Choosing electric motor for rotating platform
Here the best motor that suits your problem is stepper motor. Because this is the only motor which you could control the by steps i,e by...
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MAKING %) WATTS BULB FROM WATER BOTTLE(zero electricity needed)
Gurjapdoesn't the bleach settle down after some time?No, as we are using liquid bleach here so there is no chance of settling down. Also this bleach...
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MAKING %) WATTS BULB FROM WATER BOTTLE(zero electricity needed)
GurjapThis is amazing! I'm gonna make one! will post pics too!That is so happy to hear. I made one of my own and now i'm integrating...
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What will happen if a magnet is placed in between a transmission line?
If you place a permanent magnet between a TL then there will not be any effect. This is because the permanent magnet exerts non varying uniform...
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Best Electrical and Electronics Engineering Project Ideas and ares of research
I don't think this is really gonna help a person to become engineer. The aim of projects is to kindle ideas or to make an engineer...
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How do I calculate the magnitude and phase angle using both cosine and sine rules?
Re: How do I calculate the magnitude and phase angle using both cosine and sine rules narayana murthyhey angle 0 radians do you mean it is...
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What happens when supply is given to a permanent magnet?
bioramaniDileep we need free electrons (or 'holes' as in semiconductors) to conduct electricity. Ceramics do not have them. So they are insulators. You may be right...
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What happens when supply is given to a permanent magnet?
dileep kCEans, I have a crazy doubt What will happen if the supply is given directly to the permanent magnet?It depends on the exact situation. Generally,...
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problem with basics???
raaj90what if i connect the positive of source to one terrminal of bulb and literally put the negative terminals of the source and bulb in ground...
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Doubts on Bluetooth detection
No matter what company the bluetooth device is manufactured they all have the same specifications and their frequency range is in the globally unlicensed Industrial, Scientific...
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using only 3 phase AC source device, explain how to control the speed of dc motor
I wanna make it clear again we got to use both BR and SCR here BR acts as converter and SCR acts as power conditioner(which changes...
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Could graphene replace silicon?
Molybdenite now competing with graphene in many aspects as the graphene lacks the band gap. "In a 0.65-nanometer-thick sheet of MoS2, the electrons can move around...
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Degree project relate to electronic fields
In which stream or domain u would like to do..... I think it's better to do a bomb detecting and diffusing robot(fully automated) as this is...
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Could graphene replace silicon?
It's happy to see about a thread on Graphene...I'm a graphene enthusiast... A single graphene layer couldn't make it but when a voltage is applied across...
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Difference b/w microcontroller & microprocessor.....
ooohhh don't get confused by these answers....All u got to remember is that microcontroller's got memory in build with it whereas in processor it is not.....then...
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What will happen if a magnet is placed in between a transmission line?
Ferranti effect got nothing to do at here it's just a name given to a state where the receiving end voltage seems to be more than...
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using only 3 phase AC source device, explain how to control the speed of dc motor
Don't make this so hard. It's so easy we have SCR's which always give it's presence when we looking for speed control of any motor. Just...
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Generation Of Power Through Footsteps: piezoelectric material
First of all guys be clear in this thing that we are going to fit the piezo resonator in footwear or in the road, then start...
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Generation Of Power Through Footsteps: piezoelectric material
You can never have such a doubt.....as u know piezoelectric principle when a variable pressure is applied to a piezoelectric material it produces voltage which depends...
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What is the concept of Live and Neutral Wires?
Does A.C current changes the direction of flow in each cycle?......plz explain me abt the change in polarities in A.C
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uncontrolled rectifiers
You can refer it on "Power Electronics" by Bimbra or Rashid bcoz it is a large theory to explain.......
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