Helllllllppppp! I need a 101 Physics crash course!

[vlclabbie]

Hi guys, I have a Y12 chem prac using a variable resistor. We don't have any (that I can find!) but to order one I can't find them. Are they the same as potentiometers??

Cheers Kel

[rae]

They also go by the name rheostat.

[Ocker]

Rae forgot to say YES in front of her comment

[rae]

Thats because I didn't know!!!LOL Are they the same as potentiometers??

[Ocker]

yes

[vlclabbie]

Thanks guys - knew I could count on you

[Ocker]

Further info!
You really need a lot of extra data to purchase
What voltage are you going to put across them?
What resistance are they
What wattage? determined by last two answers!
What type / configeration, You can get carbon, wire wound on ceramic formers or rotary as in a volume control or slide type
You could email or PM prac to me and I will advise