Testing the TK Tar Baby

[Rosemary Ainslie]

Ok.  I've just caught up. Sorry Groundloop.  I'll leave this to you.  Thank HEAVENS you're there.

Kindest as ever,
Rosie

[poynt99]

GL,

After you have charged a 1000uF capacitor to 10V, how much energy in Joules is stored in that capacitor?

Now, with that potential energy "sitting there" in that capacitor, how is time involved in any way?

It is NOT. It is a static quantity of potential energy, and TIME does not become a factor until you begin discharging that capacitor at a rate of "x" Joules per second.

[mrsean2k]

Spoke too soon.


I've been trying to think of an example where "Watts per second" would be a legitimate usage, both in everyday language and technical sense.


Imagine you have a heating element in a water-filled bucket, connected to variable power supply.


You start heating the water, with the dial set to 10 Watts. That's 10 Joules per second being converted from electrical energy into raising the temperature of the water.


Every second, you bump the dial up by another 1 Watt division. So that's 10 Watts during second #1, 11 Watts during second 2, 12 Watts during second 3. And so on, and so on, until you hit the maximum setting on your dial.


During the time when you were able to turn the dial, you could legitimately say that the rate of power increase was 1 Watt per second.


This is entirely different to a situation where a static value is applied. In that case, you are talking about a fixed quantity of energy in Joules being delivered in a fixed time period, usually a second. It is entirely incorrect to talk about 1 Watt per second. The energy transferred to the water is 1 Watt-Second. That is (1J / s) * 1 s = 1 J


Rosemary confuses these terms. It may be that she doesn't mean what she writes and expresses it poorly, but the way she applies these terms are not standard usage in either common parlance or in any technical sense.

[Groundloop]

GL,

After you have charged a 1000uF capacitor to 10V, how much energy in Joules is stored in that capacitor?

Now, with that potential energy "sitting there" in that capacitor, how is time involved in any way?

It is NOT. It is a static quantity of potential energy, and TIME does not become a factor until you begin discharging that capacitor at a rate of "x" Joules per second.

.99,

You are arguing with the wrong person. :-) It was TK who said that, not me.
And, read my post above, I got the Joule Watt relationship now.

I agree with your statement.

GL.

[MileHigh]

Rosemary:

As is this entire paragraph.  From beginning to end. It is self-evidently and ENTIRELY ridiculous.

Jesus Christ almighty, when is this insanity going to end?  Remember the insanity when you and Joit could not comprehend that the MOSFET would invert a high input on the gate and show a low output on the drain?  Well this discussion about Joules and Watts and your dismissing of TK's paragraph in your comment above is INSANE.

If you can't understand the difference between Joules and Watts and you stand by your comment above then what the hell are you doing here?

Really, what's going on?  Are you an "energy researcher looking for support of your thesis" or just a bloody mindless guppy?

You go and read a book or search online or whatever, but I want to see you retract that quoted statement above.  If you don't retract that statement then you are tarring and feathering yourself.

So what's it going to be Rosemary?  Do you retract that statement above or do you push forward like some hapless fool that doesn't even understand the definitions for power and energy?

Exasperated,

MileHigh