Calling All GK guys

[manoghna]

[quote author=ALFRED PICHIKAAKI link=topic=189410.msg2304150#msg2304150 date=1304536981]
quochen ok... y only UK guys... sCo_hmmthink sCo_hmmthink
[/quote]GK... UK kadu

[ladysfinger]

Naadi kooda ante Baa.. Speakers levu.. Em artham avatle.. Nenu Intiki elli soosi taadu malli leputaa..



[quote author=JP Fan link=topic=189410.msg2304201#msg2304201 date=1304537471]
[url=http://www.youtube.com/watch?v=0ddQu1m3RqM#ws]How Electricity Works - Lesson - What is AC and DC Power?[/url]

Idi chooshi em undo cheppu bhayya. Office la videos choodalenu
[/quote]

[Chocolateboy]

[quote author=Luv Guru link=topic=189410.msg2304212#msg2304212 date=1304537610]
Ekkada Physics Forum lo pattava.. aaah disco lo nenu unna..  LoL.1q

Ippudu naa doubt enti ante.. AC long disstances travel with minor losses target cherindi... Same DC kooda major losses tho cherindi.. But rendu cheraayi gaa.. So AC direction change and sinusodial wave directional change ayina ela cherindi.. So direction change ante enti.. Y will electrons change direction in AC.. Is it necessary
[/quote] LoL.1q LoL.1q LoL.1q @gr33d

ba.. emi anukomaku.. pysics eek konchem.. edo helf seddam ani forafatuna aa forum loki duura.. inkosari pysics topics loki vellanu le.. fleezz... vadiley.. 

[ladysfinger]

thankyou Baa kaasintanna Help sesinanduku..

Inko saari aa PHYsics Forum niunchi techi vestaava [img]http://i42.tinypic.com/116i4i1.gif[/img]



[quote author=Chocolateboy link=topic=189410.msg2304224#msg2304224 date=1304537873]
LoL.1q LoL.1q LoL.1q @gr33d

ba.. emi anukomaku.. pysics eek konchem.. edo helf seddam ani forafatuna aa forum loki duura.. inkosari pysics topics loki vellanu le.. fleezz... vadiley.. 
[/quote]

[Chocolateboy]

[quote author=Luv Guru link=topic=189410.msg2304246#msg2304246 date=1304538140]
thankyou Baa kaasintanna Help sesinanduku..
[/quote]uurko ba.. na mida nake siggestondi.. sadivina topics ee ga ivanni...  sSa_j@il sSa_j@il

[Alfred pichikaaki]

[quote author=Luv Guru link=topic=189410.msg2304177#msg2304177 date=1304537215]
Nuuvu Electrical aah Baa..
[/quote]kaadu baa.. saaftware....  sSa_j@il sSa_j@il

[ladysfinger]

ante Flash Back lo kooda naa [quote author=ALFRED PICHIKAAKI link=topic=189410.msg2304262#msg2304262 date=1304538313]
kaadu baa.. saaftware....  sSa_j@il sSa_j@il
[/quote]

[ladysfinger]

appudu Waves waves ani teacher antunte... edo Samudram lo water  waves la.. electricity travel aithadi ani imagine chesukunna ippudu chooste mottam sollu sollaindi baa [quote author=Chocolateboy link=topic=189410.msg2304253#msg2304253 date=1304538233]
uurko ba.. na mida nake siggestondi.. sadivina topics ee ga ivanni...  sSa_j@il sSa_j@il
[/quote]

[Papachak]

both may be used for specific applications but the logic of the working circuit is different....

Layman terms lo ante...
AC current is one which changes with frequency (frequency is inverse of time)... So time time ki oka constant voltage level vundakunda change avutu vuntundi... Capacitors, Inductors are primary things which work on AC....

DC ante constant current throughout.... Batteries DC current ani enduku antaru ante... Chemical reaction valla same current produce avutu vuntundi... throughout... read working principle of a battery...  Resistors work on DC and Ac... but DC for that moment...
In other terms, constantly changing DC current can be called an AC... but it should alternate...

Rectifiers, Clippers use chesi DC ni AC laga convert cheyochu... Clippers Diodes use chesi AC ni DC laga cheyochu...  sHa_high5ing

inka cheppali ante poyi intermediate class or high school lo sit through chey...  sFi_boink3

[Chocolateboy]

[quote author=Luv Guru link=topic=189410.msg2304278#msg2304278 date=1304538464]
appudu Waves waves ani teacher antunte... edo Samudram lo water  waves la.. electricity travel aithadi ani imagine chesukunna ippudu chooste mottam sollu sollaindi baa
[/quote] @3$% @3$% @gr33d @gr33d @gr33d @gr33d @gr33d sSa_j@il sSa_j@il sSa_j@il sSa_j@il

[ladysfinger]

sHa_fr1ends aithe  DC ni flutuate chesi AC gaa marcha vachu antaav..

Mari mana appliances annitiki DC ne kaavali kaada  sCo_hmmthink .. Ika AC enduku mari..

So AC ki DC ki main difference is the way it is produced.. ante naaa..

AC directions enduku marustaadi any !dea




[quote author=Papachak link=topic=189410.msg2304288#msg2304288 date=1304538546]
both may be used for specific applications but the logic of the working circuit is different....

Layman terms lo ante...
AC current is one which changes with frequency (frequency is inverse of time)... So time time ki oka constant voltage level vundakunda change avutu vuntundi... Capacitors, Inductors are primary things which work on AC....

DC ante constant current throughout.... Batteries DC current ani enduku antaru ante... Chemical reaction valla same current produce avutu vuntundi... throughout... read working principle of a battery...  Resistors work on DC and Ac... but DC for that moment...
In other terms, constantly changing DC current can be called an AC... but it should alternate...

Rectifiers, Clippers use chesi DC ni AC laga convert cheyochu... Clippers Diodes use chesi AC ni DC laga cheyochu...  sHa_high5ing

inka cheppali ante poyi intermediate class or high school lo sit through chey...  sFi_boink3
[/quote]

[galigannarao]

[quote author=Papachak link=topic=189410.msg2304288#msg2304288 date=1304538546]
both may be used for specific applications but the logic of the working circuit is different....

Layman terms lo ante...
AC current is one which changes with frequency (frequency is inverse of time)... So time time ki oka constant voltage level vundakunda change avutu vuntundi... Capacitors, Inductors are primary things which work on AC....

DC ante constant current throughout.... Batteries DC current ani enduku antaru ante... Chemical reaction valla same current produce avutu vuntundi... throughout... read working principle of a battery...  Resistors work on DC and Ac... but DC for that moment...
In other terms, constantly changing DC current can be called an AC... but it should alternate...

Rectifiers, Clippers use chesi DC ni AC laga convert cheyochu... Clippers Diodes use chesi AC ni DC laga cheyochu...  sHa_high5ing

inka cheppali ante poyi intermediate class or high school lo sit through chey...  sFi_boink3
[/quote] @gr33d *=:

[Papachak]

[quote author=Luv Guru link=topic=189410.msg2304327#msg2304327 date=1304538816]
sHa_fr1ends aithe  DC ni flutuate chesi AC gaa marcha vachu antaav..

Mari mana appliances annitiki DC ne kaavali kaada  sCo_hmmthink .. Ika AC enduku mari..

So AC ki DC ki main difference is the way it is produced.. ante naaa..

AC directions enduku marustaadi any !dea
[/quote]DC ni fluctuate anaru... ippudu i=4 anedi DC current... i=sin t anedi AC type... AC for that instant DC ne annamata....
Appliances anni DC ne... AC valla upayogam entante... transmission ki.... DC form lo power most susceptible to noise.... AC is far better... andukane AC ki convert chesi danini modulate (making it more susceptible to noise, there are many modulations available... AM, FM, PM,......) chesi transmit chestaru.... ippudu ni inti taggara vunna sub stations anduke... avi ekkadooo nunchi vachina AC signal ni DC ki marchi mi intiki supply chestayi...
Industrial applications kuda ilane... any element needs DC power... so AC ni element ki iche mundu DC ki convert cheyadam avasaram....

[ladysfinger]

How ..  sCo_hmmthink  Noise ela affect chestaadi..


Ok.. So AC is just for transmission purpose... daani Modulate cheyakapote emaipotaadi.. Tell me in general terms..


and I= Sin t enduku teesukunnav... Wave anaa..  sCo_hmmthink

Naaaku Basics artham chesukovaadaniki edanna  manchi Book peru seppu

[quote author=Papachak link=topic=189410.msg2304377#msg2304377 date=1304539143]
DC ni fluctuate anaru... ippudu i=4 anedi DC current... i=sin t anedi AC type... AC for that instant DC ne annamata....
Appliances anni DC ne... AC valla upayogam entante... transmission ki.... DC form lo power most [size=10pt][color=red]susceptible to noise[/color][/size].... AC is far better... andukane AC ki convert chesi danini modulate (making it more susceptible to noise, there are many modulations available... AM, FM, PM,......) chesi transmit chestaru.... ippudu ni inti taggara vunna sub stations anduke... avi ekkadooo nunchi vachina AC signal ni DC ki marchi mi intiki supply chestayi...
Industrial applications kuda ilane... any element needs DC power... so AC ni element ki iche mundu DC ki convert cheyadam avasaram....
[/quote]

[I am back]

[b][size=24pt]How Electricity Works [/size] [/b]

[color=blue][size=14pt]Direct Current vs. Alternating Current
­
Greg Wahl-Stephens/Getty Images News/­Getty Images
This transformer helps transfer power traveling to and from California.
­Batteries, fuel cells and solar cells all produce something called direct current (DC). The positive and negative terminals of a battery are always, respectively, positive ­and negative. Current always flows in the same direction between those two terminals.

The power that comes from a power plant, on the other hand, is called alternating current (AC). The direction of the current reverses, or alternates, 60 times per second (in the U.S.) or 50 times per second (in Europe, for example). The power that is available at a wall socket in the United States is 120-volt, 60-cycle AC power.

The big advantage that alternating current provides for the power grid is the fact that it is relatively easy to change the voltage of the power, using a device called a transformer. Power companies save a great deal of money this way, using very high voltages to transmit power over long distances.

How does this work? Well, let's say that you have a power plant that can produce 1 million watts of power. One way to transmit that power would be to send 1 million amps at 1 volt. Another way to transmit it would be to send 1 amp at 1 million volts. Sending 1 amp requires only a thin wire, and not much of the power is lost to heat during transmission. Sending 1 million amps would require a huge wire.

­So power companies convert alternating current to very high voltages for transmission (such as 1 million volts), then drop it back down to lower voltages for distribution (such as 1,000 volts), and finally down to 120 volts inside the house for safety. As you might imagine, it's a lot harder to kill someone with 120 volts than with 1 million volts (and most electrical deaths are prevented altogether today using GFCI outlets). [/size] [/color]