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prateeksikka

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Posts posted by prateeksikka

  8. TELEVISION

    in Electronics chit chat

    Posted

    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

  9. FM WAVE PROPAGATION

    in Electronics chit chat

    Posted

    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

  10. TELEVISION

    in Electronics chit chat

    Posted

    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

  11. FM WAVE PROPAGATION

    in Electronics chit chat

    Posted

    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

  12. TELEVISION

    in Electronics chit chat

    Posted

    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

  13. Coupling capacitors!

    in Electronics chit chat

    Posted

    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


  16. FM WAVE PROPAGATION

    in Electronics chit chat

    Posted

    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

  18. Inductors

    in Electronics chit chat

    Posted

    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

  20. COMPUTER SYSTEM

    in Electronics chit chat

    Posted

    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
    '

  21. TELEVISION

    in Electronics chit chat

    Posted

    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

  22. SERIAL PORT

    in Electronics chit chat

    Posted

    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

  23. What is VLSI and Embeded System Exactly

    in Projects Q/A

    Posted

    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

  25. TELEVISION

    in Electronics chit chat

    Posted

    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

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