Ohms/KOhms/MOhms Plese explain it to me.

[Red]

I know Ohms is resistance. What I am trying to figure out is the
relationship between an Ohm, a KOhm and a MOhm at the same Wattage.

How many of one does it take to make one of the others?

Is 334KOhms the same as .334MOhms at the same wattage? If so then how many
Ohms is that?

If I check resistance of a 1 MOhm Linear-Taper Potentiometer (500VDC, 0.5W)
with my DMM It starts out with a reading of 01.5 Ohms, and the number rises
until somewhere around 3XX.XX Ohms it switches to .3XX KOhms. As I turn it
farther the number rises until it gets to about 32X.XX when it switches to
..32X MOhms.

I have looked all through the Machinery's Handbook, and a few Machinist
books, but they all deal with mechanical things, though they do concede
there is such a thing as electricity and it comes out of a wire. Stepper
motors are used for feed on lathes and mills. I am just trying to understand
how they are controls and work. I did a google for Ohms, and found all kinds
of things, but nothing explained the relationship between Ohms/KOhms/MOhms.

 

[Goran Larsson]

In article <WLs5b.2$rb3.2806@twister.southeast.rr.com>,
Red <triangle@apexmail.com> wrote:

I know Ohms is resistance. What I am trying to figure out is the
relationship between an Ohm, a KOhm and a MOhm at the same Wattage.

The relationship you ask for is an international standard and is
much simpler that the relationship between quaint units like inches,
feet, yards, and miles.

Surf to Google and type in the following search strings:

1 kiloohm in ohm
1 megaohm in ohm

If I check resistance of a 1 MOhm Linear-Taper Potentiometer (500VDC, 0.5W)
with my DMM It starts out with a reading of 01.5 Ohms, and the number rises
until somewhere around 3XX.XX Ohms it switches to .3XX KOhms. As I turn it
farther the number rises until it gets to about 32X.XX when it switches to
.32X MOhms.

Isn't that clue so large you can't avoid it?

< http://physics.nist.gov/cuu/Units/prefixes.html >
< http://physics.nist.gov/cuu/Units/binary.html >

--
Göran Larsson http://www.mitt-eget.com/

 

[Tom]

334,000 ohms = 334K ohms = .334M ohms
To keep your meter from jumping, check to see if you have a button named
"range hold".


"Red" <triangle@apexmail.com> wrote in message
news:WLs5b.2$rb3.2806@twister.southeast.rr.com...

I know Ohms is resistance. What I am trying to figure out is the
relationship between an Ohm, a KOhm and a MOhm at the same Wattage.

How many of one does it take to make one of the others?

Is 334KOhms the same as .334MOhms at the same wattage? If so then how many
Ohms is that?

If I check resistance of a 1 MOhm Linear-Taper Potentiometer (500VDC,
0.5W)
with my DMM It starts out with a reading of 01.5 Ohms, and the number
rises
until somewhere around 3XX.XX Ohms it switches to .3XX KOhms. As I turn it
farther the number rises until it gets to about 32X.XX when it switches to
.32X MOhms.

I have looked all through the Machinery's Handbook, and a few Machinist
books, but they all deal with mechanical things, though they do concede
there is such a thing as electricity and it comes out of a wire. Stepper
motors are used for feed on lathes and mills. I am just trying to
understand
how they are controls and work. I did a google for Ohms, and found all
kinds
of things, but nothing explained the relationship between
Ohms/KOhms/MOhms.

 

[Red]

Hey guys, thanks a lot. Its just like the metric system. Yes my DMM has a
Range-Hold button. I guess what really had me going was the fact that the
multimeter kept switching ranges in the 3's. I would have expected it to go
up to the 8 or 9's brfore switching ranges. It made me think that
Ohms/KOhms/MOhms had some off the wall scale.

Thanks again.