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Everything posted by prateeksikka
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digital multimeters are readily available for that purpose!!!!
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50Hz when you touch Oscilloscope probe
prateeksikka replied to Shahriar's topic in Electronic Projects Design/Ideas
no audioguru, i think u did not get my question .my question was does our body pick up only 50 Hz or any frequency signal by which it is surrounded say even a 30 Hz or 100Hz . in other words ,, is our body an antenna tuned at 50Hz or does it get automatically tuned to any frequency around it? -
50Hz when you touch Oscilloscope probe
prateeksikka replied to Shahriar's topic in Electronic Projects Design/Ideas
hi audioguru , thats a strange thing u told.in india we have mains frequency as 50 Hz .Does our body pick only 50 Hz ? If i am in a country with 30 Hz mains frequency and there i touch a CRO with a fan blowing over me ,what will i get on screen? 30 Hz or nothing? In other words, is our body tuned to 50 Hz or any mains frequncy noise around us? -
in case your application demands a switch on for some time and off for some time why dont you go for a simple clock type ? u can control the duty cycle as well as the timpe period as per your need. any problem with that?
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hi audioguru! as of what i know till now is that any source can give any current depending on the resistance .what r ur views? but ofcourse too much current causes it to cross rated power and burns it off! am i correct? in short ...are voltage sources current rated or voltage rated?
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Need help to ID some of my components
prateeksikka replied to nevermind1281's topic in Electronics chit chat
indeed 6552 is a regulator .capacitors also r of many types .some are electrolytic (with polarity) while some are ceramic . resistors also of different makes. so cant say without seeing them -
Where's the internal speaker of a computer located?
prateeksikka replied to a topic in Electronics chit chat
it depends on the PC configuration and the manufacturer.Laptos have it on the board itself. while desktops have it (some ) on their sound cards while some have separate! -
through my college studies /books. ;D
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fermi level is the level of energy where there is a 50% possibility to locate an electron or simply its the energy which most of` the electrons have . it depends on doping concentration ....
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what advice do u want ? i mean whether to set it up or not?
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hi. how about using a charging RC circuit so that capacitor voltage builds upto 0.7V in 3 mins .this can be fed to the base of a transistor and push it in saturation. your views ????
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it has nothing but an RC (charging discharging circuit ) inside
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hello friends ... a nice pt to discuss.what happens if we remove the "R" Between them?
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a fixed voltage divider has 2 resistances in series while a variable voltage divider has a resistance in series with a POT.
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indeed u can derive ohms law. it comes basically from charge carriers and mobility definition. mobility =speed/Electric field.. speed =distance /time and field = Electric field / distance hence derived .name the constant as R moreover ur definition of law is not correct.it does not say V=IR but indeed it says V / I =Constant ....
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audioguru is correct according to me. as of what i feel the voltage drop is of main concern in any case. moreover a safety factor of 3 times is more than sufficient. 15-20 A wire for 5 A max current is not at all a bad choice. what do u say audioguru?
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problem in what sense? if u are using it as a clock edge generator,its not at all a problem infact good. what is your application?
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cls is infact clear screen. there is a file also in your PC where u can specify where u want to be (ur default directory) when u switch to dos. our frnd has set it to c:\documents\something\something. u can set it to C:\ or the other method is just described to u....
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Constant current source for a low Ohm load
prateeksikka replied to vicious5id's topic in Electronic Projects Design/Ideas
20 ohm? hey man,i would like to know how u designed it.... internal resistance of a current source is in mega ohms.doesn't it load it? i know its tough to design a constant current source for low resistance and constant voltage supply for high resistance????? or is it the other way around??? -
These are special purpose diodes which have small charge storage time which enables them to work at very high(microwave frequencies) ;D
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the circuit you connect to the transformer draws its own current according to its resistance . but this 15 A which u are talking about is the transformer rating. 2 coils connected in parallel!!!! god knows what interferences come ! and how much current it drws.moreover always keep a safety factor! so better run only one M/C on it.
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an alternate path for the current to flow. more the number of paths ,more free is the flow and hence lesser resistance!
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hi rigdoctor! how have u built this program? i mean which language? i am keen to see it.great work! can i have it from u? ;D
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only turns ratio and wire thickness determine transformer characteristics and not its size!!!!
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well not much difference .Vcc refers to BJTs and Vdd and Vss refer to FETs...