measuring electrical resistance of a brick

[desi_thug]

hey. i got this physics coursework to do of measuring the resistance of a brick from 20-800 degrees. i need help as i got no idea how to start it .my plannindg deadline is soon and need help as fast please can u ppl help me start my planning and addd in a few hints or words u tink mite help. also how to set up apparatus and wat to use.thanks most grateful to you

[QmunkE]

There are already several threads regarding this topic. Read further down.

[Hammer]

Kellogg's Bran Flakes

[ezapf]

1. Ditto to QmonkE
2. You should have started earlier
3. Ditto to Hammer
4. Fried apple stew
5. Ditto to QmonkE
6. um, yeah

[ezapf]

Oh, poo! Sorry, QmunkE, I mis-spelled your name twice. QmunkE, QmunkE, QmunkE, QmunkE. There! I punished myself and now I feel better.

[magicdice]

try clicking here and here and this one and here too oh and don't forget this answer! that's all the help given so far to your question, you are unlikely to get much more in this thread because, if you hadn't noticed, when you post a question it gives you a list of previous similar questions. if you can't be bothered to look at these, then we won't bother to answer your question. it's all about give & take

[QmunkE]

Thanks ezapf. I never had this place to help me with my science coursework! Of course, my mum is a science teacher, but the point is still valid! And if I had been using it, I'd have bleeding well read the eight hundred billion posts about it.

[ursula62]

Do you think they are all from the same school? Or does every teacher have to use standard coursework suggestions these days?

[QmunkE]

Might be a standard GCSE or A/AS level coursework and they're all on the same exam board.

[brachiopod]

Is this not a good time to ask what the music is in "dat advert wiv da dancing robot car, innit"?

[magicdice]

now is Always the time for that, brachiopod! GCSE & A(S) level coursework is a choice between three or four options provided by the exam board. the evident lack of interest in doing in themselves indicates that it's GCSE

[Teabiscuit]

Its actually AS-level physics coursework , im doing it myself.
Personnally im going to use a flamethrower and sharks with frickin laser beams to heat my brick up. Then im going to catapult it against a 12th century castle to test its resistance!

[QmunkE]

Sounds like a good plan. Probably about as valuable an excercise as the actual one.

[98atm]

you use a oven to place da brick in you attch the wires to da brick usin conductive paint, wire to use are tangstan cuz these hav a very high meltin point

[tigeyboom]

yea i got teh same coursework, you need to check out the following things, if its not too late!

thermocouples,

EHT,

Galvanometers

And how you are going to heat the brick in your classroom... and how you are going to pass a current through it

 

thats all folks

[Roddypeepa]

I would use a high voltage supply and microammeter in series.

You should use a kiln to vary the temp as the zeroth law of thermodynaics states that temp will be same as surroundngs.

Do you really need to go up to 800 C? Will the R not be dir prop to T (Kelvin?) You should varry temp over sensible range and the extrapolate from graph.

Just refer to aNY MARK SCHEME for the planning prac as it's soooooo predictable and most makerks are for routine ****.