Ohms Law

----------- The amount of water per second is the rate at which water is coming out. Are you saying that power and current are the same? Sorry- tain't so.

Quite a few I imagine. How many children have not played with hosepipes and water by age 12?

Only if you're teaching fluid dynamics.

I know. However, I didn't correct it after posting because I was trying to think of a decent power analogy.

-- Regards, Robert Monsen

"Your Highness, I have no need of this hypothesis." - Pierre Laplace (1749-1827), to Napoleon, on why his works on celestial mechanics make no mention of God.

Voltage is really like the difference in level between two bodies of liquid, which is called 'head'. (I'm not sure if it's equivalent to pressure.)

Then, energy is head * mass, and power is head * flow rate. Note that energy and power has to be measured wrt the difference in levels, which makes perfect sense. There is more potential energy with a fall of 100' than a fall of 10'.

Now, use this fluid analogy to explain inductance... ;)

Well it's obvious innit :-) A turbine driven flywheel!. regards john

Thanks Robert, for that clarification. I confess I was unsure of the convention, but had leaned to thinking that if a unit was named after a person it would take the capital with it. I welcome your correction with good grace.

On a humorous note, would anyone care to propose other fundamental units?

I propose the metric dam as a unit of caring, defined as the threshold of caring about something. If you don't give a dam, it is below your caring threshold.

It replaces the imperial s*it, and the near-equivalent US turd, both of which are fundamentally quantised units. One either has a s*it, or not.

Lovely!

But can someone tell me which is the greater, a whole bunch or a s*it-load?

You have lotsa things wrong. First of all, V=RI is NOT Ohm's law. See

Current does not flow. Current IS flow. Current is charge flow. Saying "current flow" is the same as saying "charge flow flow", which is redundant and ridiculous. Sorry I have to keep repeating this. Ratch

It depends on what the meaning of the word 'is' is

is

See

It depends on what the meaning of the word 'is' is

Ok, ok. I just didn't feel like reading any more.

RTP?

"Geese"? How about "jeeze"?

How about "damn"? Is this world illiteracy day or something?

It's "gives a s*it" or "doesn't give a s*it".

OK, OK then it's geeze !!

that if

welcome

units?

of

Apparently Ohm's original formulation of his law was so opaque that few understood it at the time, and it took the multitalented Charles Wheatstone to recast it into the familiar form. Perhaps we should call it Wheatstone's Law. On the other hand, Wheatstone didn't invent the eponymous bridge.

Paul Burke

What do you want us to say? A circuit is established when currents (i.e. "charge flows")? Hell, I've forgotten my personal PIN number.

Paul Burke