# Investigating the resistance of resistance wire?Watch

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16 years ago
#1
Hello people i'm doing this expt investigating the resistance of resistance wire and am having trouble with my description of experiemtn and most of all prediction if anyone could help me along the right lines with my prediction i'd be very grateful.

thanks alot in advance

billy
down south
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16 years ago
#2
hey
0
16 years ago
#3
hiya
oh my god.im doing an exp on the resistance of resistance wire for physics course work.trouble is:i dont know what the hell to do!have u done it?can u help?
[email protected]
0
16 years ago
#4
remember that there is info. on the internet, and think scientifcally. if the wire is longer, then there are more metal ions, and therfore the resistance is higher.
good luck
0
16 years ago
#5
Resistance = ((resistivity constant of metal) * cross sectional area) / length.

So you want to vary either the length (which should increase the resistance proportional to the length increase) and do a range of 6 or so lengths (repeating each one twice, and averaging per length). You could also vary the area, but that's much more tricky.

Hope this helps,
-- Ida.
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16 years ago
#6
finding the results is easy but the rest of the work is boring, who ever said all work and no play is right about it being boring
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16 years ago
#7
My faviourite coursework website was www.essaybank.co.uk, check in the GCSE physics section and you will find 35 submitted 'resistance of a wire' essays - all of which are of a very high quality. Don't copy them word from word though, as some teachers recognise essays which have been copied off of well known sites such as this. Good luck.

Sincerely,
GC White (reformed)
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16 years ago
#8
P.S. Don't click on the above link as I accidentaly included a comma.
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16 years ago
#9
omg, im not the only one who makes a gramatical/punctuation error???

so JAC, gonna rip him to pieces now???

love Katy ***
0
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