TheelectricresistanceRofacertainresistorisafunctionofthetemperatureTgivenbytheequationR=aT+b,wherea and b areconstants. IfR=1200(signlookslikeahorseshoe)whenT=10.0celsiusandR=1280(signlookslikehorseshoe)whenT=50degreescelsiuswecanfindconstantsaandbbysubstitutingtheandobtainingtheequations1200=10.0a+b;1280=50.0a+baretheconstantsa=4.00(signlookslikehorseshoe)/degreescelsiusandb=1160(signlookslikehorseshoe)?
2006-12-04
00:57:56
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7 answers
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asked by
lynn l
1
in
Science & Mathematics
➔ Mathematics