update on starting problem
 

just for the records.
some of you may remember my monthly postings about my no start problems. starter motor was replaced, battery cables were replaced, alternator was tested and checked out fine, alternator wires were inspected, grounds were cleaned, battery was replaced etc
turns out i just had a draw coming from fuse 7. ill have to get in there and find out where exactly. i hated that cd player but i do like having the clock.
when i have some money i think i will replace the voltage regulator with an adjustable one to be sure

Well, on the positive side, you will have a brand-new robust electrical system when through!

Wow, all that from a radio short?

yea i hate electricity. but at least i know more about it.
Also, thanks to everyone who helped! SoCal, FRWilk, VT944, and AFJuvat were there on almost every thread

ZZZZZZZZZZZZzzzzzzzzzzzzzzzzzzzzzzZZZZZZZZZZZZZZZz zzzzzzzzzzz

What??? Oh... OK.


ZZZZZZZZZzzzzzzzzzzzzZZZZZZZZZzzzzzzzzzzzzzZzzzzzz zZzzzzzzzz...

Think of electricity like water. When you break a conduit the electrons run out all over the ground.

well if electricity is water what is power? pressure or flow? or both?

Current.

IIRC Dad who is an electrical enginer told me that when comparing water to electricity

Pressure=Voltage
Flow rate=Current
Gallons per minute=Watts
Diameter of hose=resistance

and of course, Watts = Power

good analogies

Flow rate = V
Diameter of pipe = A


V/A = R
VA=W

W = All that water in my lap

Water Flow rate (Pressure) = V
Diameter of pipe = A


V/A = R
VA=W

W = All that water in my lap

GAH! if FRWilk doesnt get it i have no hope.
E=IR for electricity right? and P=F/A for water so I(electrical term)=P(water term), E=F, and R=A.
does that hold up? voltage=force?
watts are power but what is amps?

exactly

to quote a line from that Gregory Hines - Billy Chrystal movie. (don't remember the name)
"So how many watts are in that center rail anyway??"
"enough to push a fukcing train! now SHUT UP!" (or something like that anyway)

:D

Maybe I am explaining it wrong I dont know the answer but flow rate (if that is the right term) can remain the same, but if I change the diametter (resistance) of the hose the gallons per min (output) will change. So flow rate is not equal to gallons per min. I thought flow rate would be more like feet per second.

you're close! gpm is flow-rate. diameter = restistance, and pressure = current

No, Ronin...V=IR, not A. In your case, pressure=voltage, not current, which is V/R.

Current = flow rate. When talking about fluids, electrons included, flow means, by definition, volume of fluid passing a point per unit time (vol/time = gal/min). Feet per second is a speed (distance traveled per unit time), which is about a centimeter per second for electrons in a wire.

If you make the diameter of the hose at the pump discharge larger, the flow rate will remain the same (pump specific), the speed will decrease and the pressure will increase per Bernoulli's principle.

Therefore, as the diameter of the discharge hose decreases , the pressure in lbs per square foot increases and the flow rate in gpm will remain the same.

so according to bernouli's principle for fluids by decreasing resistance (area) you increase voltage (force). is that correct for electricity?
what do we measure current in?

CURSES! foiled again!

http://www.pelicanparts.com/support/smileys/explode.gif
need to get my head back into the books. obviously been a while

;)

I did catch that too. one cm per second would be about one mile every 17.6 hours! (if my tired-a$$ 3:30 a.m. calculations are correct)

as for the rest, I'll check my answers later....

:D

Electron drift velocity
 

Sorry folks, I was wrong. Electrons actually move a hell of a lot SLOWER than 1 cm/second. More like 2.1 milimeters per minute. But thanks for making me check!

http://forums.pelicanparts.com/uploa...1073842391.jpg http://forums.pelicanparts.com/uploa...1073842438.jpg http://forums.pelicanparts.com/uploa...1073842455.jpg



If you want clearer pics to peruse, give me your email address and I'll send better files to ya.


-Tom