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Everything posted by prateeksikka
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audioguru! can i call optocouplers as solutions to bulky transformers which do the same job? prateek
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hi audioguru! my question still remains.what are these optocouplers.i only know one line pertaining to them "they have same relation to 2 ground points isolated from each other"which i could search from google.com reply soon prateek
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HI EVERYBODY! CAN ANYBODY TELL ME WHAT ARE OPTOCOUPLERS ,PRINCIPLE AND WORKING AND APPLICATIONS???? PRATEEK
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hi buddy! what kind of video circuit do u require?plz be clear prateek
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audioguru! though in any case i have only seen electrolytics caps exploding ceramic capacitors just turn blackish if i apply high voltage across them prateek
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How to get a CLOCK from a Crystal Oscillator
prateeksikka replied to masterleous's topic in Projects Q/A
hi audioguru! what kind of program can do this job.anyhow ripple counters is an easy option can an 8085 or even my pentium desktop PC be used as a controller ? what would be the logic for such a program? prateek -
what kind of data do you wish to read from the sim ? mind you your sim me get destroyed in the due process prateek
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HI AUDIOGURU! AC THROWS US AWAY BECAUSE I GUESS DIFFERENT FORCES DIRECTION B/W PARALLEL AND ANTI PARALLEL CURRENTS.] (I GUESS) MOREOVER AT OUR HOME AC VOLTAGE BECOMES ZERO ATLEAST 50 TIMES IN 1 SECOND.WHILE DC MAKES ME STICK TO THE LINE,NO CHANCE OF GETTING AWAY HENMCE IT IS MORE DANGEROUS! RIGHT?YOUR COMMENTS PRATEEK
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I KNOW THAT AN ELECTROLYTIC CAPACITOR HAS A POLARITY! I AM SURE ON THAT POINT ! I CONNECTED IT RIGHT AFTER ALL,I LOST 2 CAPACITORS IN2 HUGE EXPLOSIONS.NEITHER ARISES A QUESTION OF HIGH BIAS BECAUSE I WAS CAREFULLY INCREASING IT WHEN I REACHED JUST 4V IT EXPLODED WITH ALL MATTER COMING OUT OF IT.YMMMMMMMM CAN THE CAPACITORS BE FAULTY? PRATEEK
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hi audioguru! in any case which when according to you is more dangerous? a 220 V AC OR A DC VOLTAGE OF SAME VALUE? MY ANSWER(A GUESS) IS DC BECAUSE AC WILL ATLEAST ASSUME ZERO VALUE MANY TIMES IN SAY 10 SECONDS BUT DC WOOOOOOOOF! WHAT DO U THINK? PRATEEK
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hi audioguru! i had started this topic of FM wave propagation because i had recently built an FM RECIEVER AT MY PLACE ,.it was designed to operate at 220Vac which was followed by transformer,rectifier and filters etc. actually i had no transformer earlier when i was making it, out of curiosity,i connected only 4V dc (with fear in mind) after the filter directly and you wont believe,one of my electrolytic capacitors of 470uF exploded like a bomb! i changed it and put a 1000uF in its place i was shocked when i saw it exploding into pieces,however the circuit worked when i put the T/F in place and connected the mains supply any comments on how it could happen? prateek
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hi audioguru! can i safely conclude that it is neither voltage,nor current but high power kills a person.high voltage and high current alone cant do anything .it is the power(voltage*current) which kills the person. comments from all? prateek
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HI AUDIOGURU! THE FORMULA POSTED BY SHAHRIAR CLEARLY TELLS US THAT DISPLACEMENT CURRENT IS A FICTITIOUS CURRENT ASSUMED TO SATISFY THE EQUATION!!!! (MAXWELL'S EQUATION) SOME BOOKS ALSO SAY THAT NOTHING IS GETTING DISPLACED,THE NAME IS JUST A JAM DUMMY AND PURELY AN ASSUMPTION,YOU COULD CALL IT AS YOU LIKE BUT IT IS JUST A CONVENTION TO CALL IT A DISPLACEMENT CURRENT(FUNDAMENTALS OF PHYSICS BY RESNICK AND HALLIDAY SAYS THIS) PRATEEK
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ANTE! IF I CAN STAND HEALTHY T 29 mA,I GUESS EASILY I CAN TOUCH THE VERY HIGH VOLTAGE TRANSMISSION LINE WHICH HAS A FEW MICRO AMPERES FLOWING,CAN A MICROAMPERE CURRENT KILL A PERSON EVER? PRATEEK
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hi all! alun u r right transformers do cause some problem in winding but air cored inductors very easy to make! i hv myself made some of them .fatal i can help u in that regard u just need a piece of wire prateek
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hi audioguru! i must correct u on this point.in my country too ,F,M and AM bands are not used by army,the bands used by them fall into say 540-1600kHz which we vaguely called AM band (atleast in my country) but thats what i meant by my point earlier,540-1600 kHZ IS NOT F ULLY AM some frequencies are missing and those are used by army .actual AM is say(hypothetical) 540-670 690-880 930-1600 these are assumed and not actual values values falling out of this range used by military prateek
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HI AUDIOGURU! WHILE SEARCHING ON THE NET,I FOUND THAT SOME OF THE SO CALLED MISSING FREQUENCIES ARE RESERVED FOR USE BY OTHER APPLICATIONS LIKE MILITARY ETC COMMENTS? U TOO SEARCH FOR A POSSIBLE REASON AND DO TELL ME IF U GET IT! PRATEEK
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HI THERE! WHATS A CB? FOR WHAT APPLICATION DO YOU WANT THIS INDUCTORS, I HAVE MYSELF MADE INDUCTORS FOR SOME OF THE APPLICATIONS.MAY BE YOUR APPLICATION FALLS IN THAT AREA ,IF YES U CAN MAKE IT ON YOUR OWN,ITS REALLY SIMPLE,BELIEVE ME! PRATEEK
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can anyone tell me the names of common buses like PCI,ISA etc and the functions they perform? my cam is not working so i cant post a pic of my PC
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HI EVERYBODY! I OPENED UP THE CPU BOX OF MY COMPUTER FOR THE SECOND TIME I COULD RECOGNIZE THE CPU CHIP ON THE MOTHERBOARD,A THICK BOOK TYPE HARDDISK!,AND A FEW OTHER BUSES.CAN ANYONE HELP ME IN KNOWING WHAT TYPES OF BUSES ARE THESE.THOUGH I KNOW A FEW WORDS LIKE ISA BUS,PCI BUS ETC.WHAT DO THESE BUSES ACTUALLY DO AND WHAT ARE THE DIFFERENCES B/W THESE BUSES.DO WE HAVE ANY OTHER BUS IN THE SYSTEM? PRATEEK '
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AUDIOGURU! HIGH VOLTAGE GENERATING HIGH CURRENT KILLS A PERSON. A 2A CURRENT SOURCE ,WILL IT GIVE ME A SHOCK,IF NOT WHAT VALUE OF CURRENT SOURCE (ASSUMED IDEAL) AND WHAT VALUE OF VOLTAGE SOURCE CAN GIVE A GOOD SHOCK? PRATEEK
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hi MP! AND OTHERS I NUST ADD THAT BE CAREFUL TO CLEAR THE DATE AON THE PORTS BEFORE USING ANY INPORT COMMAND IN YOUR PROGRAM,AN EXCESSIVELY HIGH VOLTAGE PRESENT ON A PORT PIN ALONG WITH THIS CARELESSNESS CAN EVEN DAMAGE YPUR MOTHERBOARD(IT IS A PRACTICAL EXPERIENCE) PRATEEK
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What is VLSI and Embeded System Exactly
prateeksikka replied to Vaibhav Jain's topic in Projects Q/A
hi vaibhav! u can very well work on projects like physical layout design(i.e how the components will be physically arranged on the chip),timing analysis, delay analysis,micrtocontroller programs(if u have some knowledge of a programming language like C or atleast assembly language) these u can do sitting at ur home on a PC!!!! PRATEEK -
HEY GUYS! WHATS THE PROBLEM IN USING AN INTEGRATOR CIRCUIT WITH FEEBLE AMPLIFICATION USING OPAMPS? PRATEEK
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AUDIOGURU! A FEW mA current is sufficient to kill a person .if i take a voltage source of 3V,short circuit it,a large,huge current will flow,even if i touch the wire at this point it wont even make me feel the current while a roomheater which has a few mA or hardlyA current can tear apart a person.ur comments? prateek