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prateeksikka
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Posts posted by prateeksikka
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hi there!
YEAH TOO SMALL FOR A PILOT TO SEE.AUDIOGURU,WHAT KIND OF DAMPING ARE U TALKING ABOUT?
DO U EXPECT SUCH HEAVY LINES CARRIED AWAY BY AIR,YEAH MAY BE THEY CAN SWING A BIT UPON HEAVY WINDS.HEY,CAN IT HAVE A LINK WITH PROVIDING UPWARD THRUST TO THE WIRE IN ITS LONG RUN SO THAT IT DOES NOT SLAG JUST LIKE THE THREAD OF A LONG FLYING KITE!
::)
PRATEEK -
DONT WORRY!
ONE DAY ARTIFICIAL INTELLIGENCE WILL MAKE THEM UNDERSTAND BUT PERHAPS THAT DAY I AND U WILL BE OLD!ha ha ;D -
hey guys!
the electricity meters in our homes show the monthly usage by us of active power .
i.e V*I *cos(Q).i.e voltage*current*power factor.as power factor is less than 1,this power is less than voltage *current actual power used by us. So do we pay less than
actual power used by us. i mean if we have only choke coils at our home we need to pay nothing. Use tubelights only !say no to bulbs.Could anyone explain the fallacy?
prateek ;D -
hi there!
i have noticed some orange coloured beautiful looking balloon like structures at small intervals along the path of a long distance transmission lines in my country.A long distance line generally moves from 1 city to another at 33kV and passes
through many such small balloons.can u tell me what are they?
prateek -
hi audioguru!
but the question which arises here is how do i tell my computer(software)
or hardware about it.i mean the things u just told.
prateek ;D -
hi there!
for colour sensing,is it the wavelength only that can i use?
any other property by virtue of which the colors differ? ::)
prateek -
hi there!
how do u plan to control the temperature of the chamber?
How would you maintain it at such a low value.are u using a compressed gas?
Even that is the case,which superconductor would u use?
But one thing is certain,such one is going to be a big breakthrough.
:)
prateek -
hi there!
basically we conclude it is neither voltage nor current but the power which kills the person
;D -
that is not at all the case. most multimeters have ac options in them .and they give rms value as the reading on their panels.i verified that i am getting 230V rms in my home many times using even the cheapest meters available.
;D
prateek -
hi there!
thats not a big thing to worry!
upto 50V u can play with!
grounding is a problem at high voltage,just make a small pit and put the wire in it.cover with mud!thats it.Alas!
your gold plans lost! ;D -
hi kevin!
Do all the windings have a common ground?
With a good quality multimeter,try out checknig b/w winding-winding point and winding -ground poiint. :D
Such transformers are used to change turns ratio and thus get varying voltages at the o/p. depending on the requirement.in your case i guess it is much simpler.
why dont you use a t/f with constant turns ratio which gives 5V at the o/p?
::)
prateek -
hi alun!
you are again and again talking about the source impedance in supplying lethal current.do u think a 5V battery open cicuit without internal impedance would be
sufficient to kill a person? ;D
how much min voltage source can kill a person if no resistance is b/w the body and source?
:-\ -
hi alun!
yes in continuation with that you might have noticee it with a 6V battery ,even if you short it with a wire u see a slight spark or somewhat heating effect and tingling sensation if you touch it to your sensative part like the tongue, in other words it is insufficient to kill you.while the current may be as high as 6A(if the resistance is 1ohm).
Agreed!!!!!!!~!!!!!!!
But the car example you gave,do we really have 25kV inside the car?
why would it not kill a person?dont you think that the person who touches 25kV will
draw a current depending upon his body resistance and will be torn to ashes?
25kV/1M ohm=25mA sufficient to kill!!!no? ::)
prateek -
deeper buried the ground wire better it is considered.it must have some metal and then a layer of stones around.
;D ;D ;D
prateek -
hi alun!
i apologize for using block letters. believe me i am not shouting and i am as soft as a cotton ;D.
can u tell me when a person gets killed by a shock, is it the high voltage which kills the person or high current.A book in physics by resnick and halliday which i studied in school shows a line man repairing a high voltage wire without switching off the power sitting in a helicopter?
hows that? :o -
hi audioguru!
i know that the limits would be crossed and it will be quite difficult to chose RC combination for the same.but what would be the problem with a 555?
what are these CD4541 AND 4060?
I havnt heard bout them earlier. :o
prateek -
HI THERE!
USE AN RC CIRCUIT IN SUCH A WAY THAT VOLTAGE ACROSS C RISES EXPONENTIALLY,
FEED THE CAP VOLTAGE TO THE BASE OF A TRANSISTOR IN CUT OFF.CHOOSE R AND C SUCH THAT AFTER 15 MINS VOLTAGE ACROSS C REACHES 0.7V,THE TRANSISTOR WILL BE DRIVEN INTO SATURATION AND CAN BE MADE TO SWITCH ON AN LED OR A RELAY IN COLLECTOR CIRCUIT.ISNT IT SIMPLE! 8)
PRATEEK -
HI THERE ALL!
CAN ANYONE TELL ME WHAT CAUSES LIGHTENING STRIKES IN RAINY WEATHER. I HAVE READ THAT IT IS DUE TO SOME IONS BUT HOW I DONT KNOW.
FROM WHERE DO THESE IONS COME?
::)
PRATEEK -
HI ALL!
YOU MUST BE KNOWING THAT ELECTRIC POWER IS TRANSMITTED AT HIGH VOLTAGE AND CURRENT IS KEPT LOW.REASON IN SUPPORT OF THIS IS THAT HIGH CURRENT GIVES MORE I*I*R LOSS IN POWER.I WISH TO KNOW THAT WHY WONT HIGH
V*V/R LOSS BE SIGNIFICANT HERE WHICH IS ALSO A FORMULA FOR POWER LOSS AND REMEMBER V IS IN kVs(KILO VOLTS)? ???
PRATEEK -
hi there!
if you wish to study electronics right from the scrap,it would be good for you to first brush up a good book on fundamentals of electronics.
like malvino leach,millman halkias etc.u can also look up some good electronics tutorials availablle on the web ;D
prateek -
hi there!
what can be simulated on 4-20mA.
these are the transmission limits of sensors in telemetric transmission.
what else?
;D -
hi there!
i still feel that the problem lies with your transformer,try with a new one.
Thinking that the problem is with the fuse,dont remove or replace it if it is getting blown up,otherwise it is dangerous for your costly kit ur 1200$
are in jeopardy!! ;D Do tell me the results with a new x former in correct configuration.
prateek -
actually address bus carries the location in which u wish to write and data bus carries the data to be written in some cases they are time multiplexed to save extra wires(lines)
;D
prateek -
hi there!
ORCAD CAPTURE WITH LAYOUT EDITION AND PROTEL ARE VERY HANDY WITH PCB DESIGN AS THEY HAVE AN OPTION OF AUTOROTING THE BOARD. ;D
PRATEEK
do we pay less?
in Theory articles
Posted
HI ALUN!
thats what i said ,the power meters only measure the power used by us i.e the power dissipated in the resistive elements at our homes.If we have pure inductances we need to pay nothing as we are dissipating nothing!
any explanation for the fallacy?
:(