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01-21-2003, 06:56 PM | #1 |
Scooby Specialist
Member#: 16696
Join Date: Mar 2002
Chapter/Region:
MWSOC
Location: Baraboo, WI
Vehicle:2002 WRX Sedan Stg2 2013 OBW roll'n at 30+mpg |
Electrical Formulas, Basic Electrical information.
In a car we tend to assume between 12 to 14.4 volts as normal
with that in mind... Here are the basic Ohm's Law calculations... -The key to the letters- E = Volts (this is the force of electrons, also known as Pressure) I = Amps (this is the quanty of electrons, also known as Current) P = Watts also known as Power (product of Volts X Amps) R = Ohms (unit of resistance) to find Amps (I) I = E/R I = P/E I = Sq.Root of P/R to find Watts (P) P = E X I P = R X (I^2) <----I is squared (IxI) P = (E^2) / R <----E is sq. then divide by R to find Restance (R) R = E/I R = P/ (I^2) <----I is squared R = (E^2) / P <----E is sq. then divide by P to find Voltage (E) E = R X I E = P/I E = Sq.Root of PXR (P times R. Then Sq.root the total) terms DC = Direct Current AC =Alternating Current AWG wire table, courtesy of Ride5000 Wire Table
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Last edited by munkis; 03-01-2003 at 02:25 PM. |
01-23-2003, 07:31 PM | #2 |
Scooby Guru
Member#: 1847
Join Date: Jul 2000
Chapter/Region:
Tri-State
Location: brokenmotorsports.com
Vehicle:Team Broken: V6 GF rallyarmor.com |
Please put all submissions for this thread here:
http://forums.nasioc.com/forums/show...hreadid=305144 |
01-23-2003, 07:33 PM | #3 |
Scooby Guru
Member#: 1847
Join Date: Jul 2000
Chapter/Region:
Tri-State
Location: brokenmotorsports.com
Vehicle:Team Broken: V6 GF rallyarmor.com |
FAQ
Q. I just put in seats with out airbags in my WRX, what size resistor do I need to make the air bag light shut off. A. 3.3 ohms. Q: What wires do I need to hook up to a starter button? A: In the ignition harness (under steering column) you need the black one and the black/yellow. Crossing these two with the key in the "ON" position will crank the starter. Cutting the black/yellow one will disable starting with the key. Q: I blew a fuse, can I replace it with a different rated fuse? A: No, always replace fuses with the same size/rating. Q: My parking lights wont shut off A: Check and make sure the switch on the top of the steering colum is in the off position. Threads of Note WRX Fog light MOD http://forums.nasioc.com/forums/show...threadid=37232 Auxiliary Lighting and Mounting http://forums.nasioc.com/forums/showthread.php?t=673117 DIY Cruise control light bulb replacement http://forums.nasioc.com/forums/show...ostid=12840875 Last edited by munkis; 02-27-2006 at 10:22 PM. |
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