Re: kids these days

On Wed, 2 Oct 2024 20:29:23 -0000 (UTC), Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

john larkin <jl@glen--canyon.com> wrote:

On Wed, 02 Oct 2024 06:02:09 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
 

On a sunny day (Tue, 01 Oct 2024 07:50:47 -0700) it happened john larkin
<JL@gct.com> wrote in <eu2ofjhoa2566a02apvlhjlvil4gaq0536@4ax.com>:
 

On Tue, 01 Oct 2024 06:11:49 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
 

On a sunny day (Mon, 30 Sep 2024 08:24:38 -0700) it happened john larkin
<JL@gct.com> wrote in <7bglfjtll1os4g6pfqhf1i7jl0acmrvlqv@4ax.com>:
 

On Mon, 30 Sep 2024 11:13:56 +0100, Cursitor Doom <cd@notformail.com>
wrote:
 

On Mon, 30 Sep 2024 05:15:02 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
 

On a sunny day (Sun, 29 Sep 2024 10:36:26 -0700) it happened john larkin
<JL@gct.com> wrote in <kb3jfjpejs47hqjd00fis20eog8de19ae8@4ax.com>:
 

I wouldn't hire someone who complicates a simple question into
paralysis.
 
 
I draw a 10 volt battery connected to two resistors, 9K in series with 1K.

 
The problem there is 'draw', no reality.
The battery will have an internal resistance, maybe discharged too.
 

What's the voltage across the 1K?

 
 
 

I hired a 3-month intern a month ago who failed the test. He said 9
volts. I hired him anyway and fired him as an intern on Friday. He's
full time now. He's mostly a software engineer. I'm teaching him basic
electronics now.

 
Well, that is OK.
But needs experimenting, building circuits, else all vaporware.
Same with software, write it, test it, else just imagination...
It may not be / work for everybody..
Some run for US precedent..
When I have to believe the crap trump puts out these days (about Iran for example)
4 sure (or maybe even 00 sure <where 00 is the symbol for infinite> ) we will have
WW3 no matter who is winning the electtions.
 
 

I dream of some day finding a kid who gets the voltage divider right
and has something intelligent so say about the next test, an NPN
emitter follower.

 
Ge or Si?

 
John mentioned a Vb of 0.6V so the 'student' is expected to know it's
silicon. And of course, it's a Vbe of 0.6V and that distinction seems
to trip up a lot of young folks, it seems. The Vb is 5. Once they get
that straight, the rest of it falls into place easily enough. Should
take < 30s for someone to figure out - and hopefully <<!

 
No, I said that one EE grad claimed that Vb (not Vbe) would be 0.6
volts to ground.
 
Can anyone here say about what the base and emitter voltages actually
are? Collector current?
 
+10 supply, two 10Ks making a divider into the base, 1K emitter to
ground, typical small silicon NPN.

 
Depends on the beta, if YOU assume beta is huge ( >=300 or so)
then base will be at about 5 V, emitter at about 4.3 V
current will then be 4.3 / 1000 or 4.3 mA
(I always go for .7 V Vbe for some reason)
 

Extra credit: anything else to say?

 
For a lower beta (may be as low as 10 for for example a power NPN)
you need to take into account the base current that will among other things
decreae the base voltage followed by a lower emitter voltage...
 
Are credits chocolate?

 
Yes.
 
https://www.dropbox.com/scl/fi/7pmkpe7468dgzaatxi50w/Eng_Choc.jpg?rlkey=nmefiui4eqbzfzvhjdhbxcqla&raw=1
 
We have a direct account with Lundt.

 
Amazing, I ordered some of these 2 weeks ago,
https://www.bol.com/nl/nl/p/verkade-puur-intens-12x-111-gram/9300000158912440
all gone now :-)
So yesterday I went shopping, got new ones...
When winter comes a hot chocolate drink is good too, add some sugar:
https://www.ah.nl/producten/product/wi127402/blooker-cacaopoeder

 
It makes no sense that europeans are a zillion miles from the places
that grow chocolate, but make such good stuff. The Ritter Sport dark
stuff is great.
 
 

>
Nah, it’s all from the sun-drenched tropical mountains of Holland.
>
Cheers
>
Phil Hobbs

There's actually a ski resort in the Netherlands.