ElektronikWikin - Användarbidrag [sv]

Ohms lag

2007-03-07T19:04:52Z

007sweden: Ohms-lag moved to Ohms lag

Ohms lag U=R*I anger sambandet mellan [[spänning]] i Volt (U), [[resistans]] i Ohm (R) samt [[ström]] Ampére (A).

Modellen formulerades av [[Georg Simon Ohm]] år 1826.

Ex på användning:
Du har 12V men ska driva din lampa med 5V 100mA.
Lämpligen sätts en [[resistans]] i serie med lampan. Storleken på denna [[resistans]] räknas lätt ut med Ohms lag.
Då resistansen är i serie ska samma ström gå genom resistansen som genom lampan, dvs 100mA. Då lampan ska ha 5V behöver spänningsfallet över resistorn vara 12V-5V=7V.
Omskrivning av Ohms lag ger R=U/I. Resistansen ska då vara 7V/100mA= 70 Ohm. Närmsta [[resistor]] i E-12 serien är 68 Ohm vilken borde duga väl.

Bra översättningsbild som även tar upp Effekt.

http://www.holroyd-components.co.uk/images/ohms_law1.jpg

Ohms lag

2007-03-07T19:04:39Z

007sweden:

Ohms lag

2007-03-07T18:07:50Z

007sweden:

Ohms-lag U=R*I anger sambandet mellan [[spänning]] i Volt (U), [[resistans]] i Ohm (R) samt [[ström]] Ampére (A).

Modellen formulerades av [[Georg Simon Ohm]] år 1826.

Ex på användning:
Du har 12V men ska driva din lampa med 5V 100mA.
Lämpligen sätts en [[resistans]] i serie med lampan. Storleken på denna [[resistans]] räknas lätt ut med Ohms-lag.
Då resistansen är i serie ska samma ström gå genom resistansen som genom lampan, dvs 100mA. Då lampan ska ha 5V behöver spänningsfallet över resistorn vara 12V-5V=7V.
Omskrivning av Ohms-lag ger R=U/I. Resistansen ska då vara 7V/100mA= 70 Ohm. Närmsta [[resistor]] i E-12 serien är 68 Ohm vilken borde duga väl.

Bra översättningsbild som även tar upp Effekt.

http://www.holroyd-components.co.uk/images/ohms_law1.jpg

Ohms lag

2007-03-07T18:01:00Z

007sweden:

Ohms lag

2007-03-07T17:58:47Z

007sweden: Ohms-modell moved to Ohms-lag

Ohms-modell U=R*I anger sambandet mellan [[spänning]] i Volt (U), [[resistans]] i Ohm (R) samt [[ström]] Ampére (A).

Modellen formulerades av [[Georg Simon Ohm]] år 1826.

Ex på användning:
Du har 12V men ska driva din lampa med 5V 100mA.
Lämpligen sätts en [[resistans]] i serie med lampan. Storleken på denna [[resistans]] räknas lätt ut med Ohms-modell.
Då resistansen är i serie ska samma ström gå genom resistansen som genom lampan, dvs 100mA. Då lampan ska ha 5V behöver spänningsfallet över resistorn vara 12V-5V=7V.
Omskrivning av Ohms-modell ger R=U/I. Resistansen ska då vara 7V/100mA= 70 Ohm. Närmsta [[resistor]] i E-12 serien är 68 Ohm vilken borde duga väl.

Samlade projekt

2007-03-07T16:26:03Z

007sweden: /* Förslag på ytterligare kategorier */

===== CNC =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8995 - [[User:Adis|Adis]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2371 - [[User:Fagge|Fagge]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=5379 - [[User:Tecno|Tecno]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4959 - [[User:Sulass|Sulass]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2115 - [[User:Lindqvist|Lindqvist]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1913 - [[User:Sprawl|Sprawl]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7633 - [[User:Olof Norrman|Olof Norrman]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=6017 - [[User:jeda007|jeda007]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4471 - [[User:Logan|Logan]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=3560 - [[User:Loterus|Loterus]]

===== Datorer =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7814 - [[User:Fagge|Fagge]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7128 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7807 - [[User:007sweden|007sweden]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7477 - [[User:dancar|dancar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=5061 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4145 - [[User:Dekor|Dekor]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=3262 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2298 - [[User:Virr3|Virr3]]

===== Effektpedaler =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8949 - [[User:Shep|Shep]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8427 - [[User:JimmyAndersson|JimmyAndersson]]

===== Etstankar och UV-boxar =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8561 - [[User:Chribbe76|Chribbe76]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=6538 - [[User:Jack|Jack]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=6200 - [[User:Detraw|Detraw]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4435 - [[User:Matseng|Matseng]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4532 - [[User:Adis|Adis]]
*http://www.elektronikforumet.com//forum/viewtopic.php?t=5656 - [[User:Dekor|Dekor]]
*http://www.elektronikforumet.com//forum/viewtopic.php?t=14664 - [[User:pheer|pheer]]

===== Förstärkare =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8647 - [[User:danne_linkinpark|danne_linkinpark]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7336 - [[User:Fritzell|Fritzell]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=3125 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8061 - [[User:Tekko|Tekko]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7449 - [[User:Ashsama|Ashsama]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=6546 - [[User:Tekko|Tekko]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2625 - [[User:peranders|peranders]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4336 - [[User:PaNiC|PaNiC]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4209 - [[User:Fricke|Fricke]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4067 - [[User:Oblivion|Oblivion]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2747 - [[User:peranders|peranders]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2882 - [[User:Oblivion|Oblivion]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8486 - [[User:bose|bose]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4861 - [[User:Illuwatar|Illuwatar]]

===== Högspänning =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7171 - [[User:KONSTAPEL-MURMEL|KONSTAPEL-MURMEL]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=537 - [[User:PaNiC|PaNiC]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2332 - [[User:Shep|Shep]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1732 - [[User:cosmox|cosmox]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=9145 - [[User:LaRdA|LaRdA]]

===== LED-snurror/Magic Wands =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=5847 - [[User:Cenorpa|Cenorpa]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1814 - [[User:Mullemeck|Mullemeck]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=3110 - [[User:Maze|Maze]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4272 - [[User:Jack|Jack]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=64 - [[User:EagleSpirit|EagleSpirit]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=562 - [[User:Matseng|Matseng]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1502 - [[User:Mullemeck|Mullemeck]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=3628 - [[User:Arrowfredde|Arrowfredde]]

===== Mjukvara =====
*[http://www.elektronikforumet.com/forum/viewtopic.php?t=8744 Wizard för AVR-utveckling] - [[User:cykze|cykze]]

===== Nixie =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4843 - [[User:Quanton|Quanton]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8590 - [[User:Virr3|Virr3]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=764 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1124 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=2925 - [[User:PaNiC|PaNiC]]

===== Nätagg =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8152 - [[User:Tekko|Tekko]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8242 - [[User:pheer|pheer]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8217 - [[User:simon78|simon78]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=7689 - [[User:pagge|pagge]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=6121 - [[User:Rohan|Rohan]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=5346 - [[User:slowfly|slowfly]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=4462 - [[User:Macce|Macce]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1469 - [[User:Tony|Tony]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1317 - [[User:gurgalof|gurgalof]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=236 - [[User:Mattias|Mattias]]
*http://www.elektronikforumet.com//forum/viewtopic.php?t=9160 - [[User:Dekor|Dekor]]

===== Synthar/Elektroniska musikinstrument =====
*http://www.elektronikforumet.com/forum/viewtopic.php?t=9018 - [[User:JimmyAndersson|JimmyAndersson]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8797 - [[User:Jack|Jack]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8868 - [[User:Pehr|Pehr]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=8215 - [[User:JimmyAndersson|JimmyAndersson]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=6801 - [[User:JimmyAndersson|JimmyAndersson]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=1929 - [[User:Fulbert|Fulbert]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=5619 - [[User:chille|chille]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=5177 - [[User:Fritzell|Fritzell]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=13196 - [[User:Noddan|Noddan]]

===== Gitarrer =====

*http://www.elektronikforumet.com/forum/viewtopic.php?t=13092 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=11964 - [[User:Illuwatar|Illuwatar]]
*http://www.elektronikforumet.com/forum/viewtopic.php?t=10855 - [[User:Qbert|Qbert]]

===== Förslag på ytterligare kategorier =====
*LED-matriser
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*FM sändare
*Övriga LCD/TFT-projekt