ite poiting ooint Fr Pach ot the folloming rsws, cick onthe tinks to read the te
ID: 1414413 • Letter: I
Question
ite poiting ooint Fr Pach ot the folloming rsws, cick onthe tinks to read the tempe is t te lhe ti i po, atn e in k evin and the r et istanc R× using Equat on (L), use th shows in te exaroples. emperature 40+273 2 You will need to take the natural log of the resistance and the inverse of the temperature. Resistance (2), Temperature (K) 627, 277 573, 296 519, 313 296 313 , 456, 340 426, 357 340 omputers 357 emputer's answer now shown above e the resistance versus temperatuire results, Since the resistance for a thermistor goes as inc. This has the same form as à linear streight line,ye By plotting / which is the constant and the y intercept is equal to i e p otr and find the top tes below. (Click on tink to download thaimistor resictanice Ad temberstunExplanation / Answer
ln(627) = 6.44 1/277 = 3.61 * 10-3
ln(573) = 6.35 1/296 = 3.378 * 10-3
ln(519) = 6.25 1/313 = 3.194 * 10-3
ln(456) = 6.122 1/340 = 2.941 * 10-3
ln(426) = 6.054 1/357 = 2.801 * 10-3
=> The plot between ln(R) and 1/T comes to be straight line
=> slope = 2081.6
=> y intercept = 6.541
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