Author Topic: trailer wiring??  (Read 1726 times)

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jetcracker82

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Re: trailer wiring??
« Reply #15 on: March 27, 2007, 05:07:47 PM »
the blinkers on my s10 go faster when hooked up to a trailer.. the way i imagine it is that with the trailer lights its pulling more power/ amps which makes the metal thing that makes it blink get hotter faster and when it gets hot it pops up opening the circuit vus making it turn off then it cools fast to close the circuit making the lights go on vus a blinker... that my theory that is subject to failure.


Ohms Law states that, "in an electrical circuit, the current passing through a conductor, from one terminal point on the conductor to another terminal point on the conductor, is directly proportional to the potential difference (i.e. voltage drop or voltage) across the two terminal points and inversely proportional to the resistance of the conductor between the two terminal points."

In mathematical terms, this is written as:

    I = V/R

So what does that mean?  Well...

  • I = Current measured in Amps.
  • V = Voltage measured in Volts.
  • R = Resistance measured in Ohms.

In this case, the voltage is constant at 12 volts.  This can not change.  The only things that can change is I and R but they have to stay in proportion with each other since the outcome must still equal V.  So, as one increases the other must decrease.

Now depending on how the lights are wired, they will either increase or decrease the resistance.

For Series Circuits R(Total) = R1 + R2...

For Parallel 1/R(Total) = 1/R1 + 1/R2...

This ends Electronics 101...   :doggy:

You can't mention ohm's law without giving love to Kirchoff's voltage law which states the sum of all the voltage drops across a series circuit is equal to the source voltage.  Or Kirchoff's first law the states at any point in an electrical circuit where charge density is not changing in time, the sum of currents flowing towards that point is equal to the sum of currents flowing away from that point.  Then there's Kirchoff's law of thermal radiation but we shouldn't get in to that today.  We'll save that for tomorrows class on basic electronics theory.  cheers.

Offline chardrc

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  • Posts: 3535
Re: trailer wiring??
« Reply #16 on: March 27, 2007, 06:21:27 PM »
aw soo much learning.. and thinking... on spring break... not good  :brick:

wait i learned that in 9th grade science...
1990 YJ 4cly, ax5, 2.5 inch BDS lift, 31 MTr\'s,  Powertrax-lockers all around, track-bars removed, boomerang shackles, warn m8000 winch, electric fan. [sold but not forgotten]

2007 jk Rubicon 2dr

jeepheap

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Re: trailer wiring??
« Reply #17 on: March 28, 2007, 05:35:04 AM »
9TH GRADE SCIENCE! i went to college for 3 years studing electronics and i still don't understand it! :puzzled:

(switched to criminal justice. it's easier to be a cop. ;))

Offline chardrc

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Re: trailer wiring??
« Reply #18 on: March 28, 2007, 09:46:01 AM »
well i learned the quoted electronics 101 stuff in 9th grade.. and some of that voltage law... the radiation and other stuff is still in the air for me.
1990 YJ 4cly, ax5, 2.5 inch BDS lift, 31 MTr\'s,  Powertrax-lockers all around, track-bars removed, boomerang shackles, warn m8000 winch, electric fan. [sold but not forgotten]

2007 jk Rubicon 2dr

jetcracker82

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Re: trailer wiring??
« Reply #19 on: March 28, 2007, 09:47:29 AM »
aw soo much learning.. and thinking... on spring break... not good  :brick:

wait i learned that in 9th grade science...

It took me year total in the burning desert of 29 Palms CA in a Marine Corps school, beating my head off the desk to learn that crap.  But I can fix the hell out of some comm gear.

Offline Jeffy

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Re: trailer wiring??
« Reply #20 on: March 28, 2007, 12:00:34 PM »
Hmmm, it seems I had it easy.  :lol: Took Electronics in HS then took Electronic Technician classes at the local JC.  (Technician certification involves a lot of hand on stuff then EE.) AC & DC circuits, Digital Theory, Microprocessors...  Never did bother to get my ETech License.  Boring stuff.... :whistle:
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