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This question contains statement-I and statement-II of the four choice given after the statement, choose the one that best describes the two statements. Statement I : The temperature dependence of resistance is usually given as R = R_(0) (1 +alpha Deltat). The resistance of a wire changes from 100 Omega" to " 150 Omega when its temperature is increased from 27^(@)C" to "227^(@)C. This impilies that alpha = 25xx 10^(-3)""^(@)C. Statement II: R = R_(0) (1+ alphaDelta t)) is valid only when the change in the temperature Delta T is small and Delta R= (R- R_(0)) lt lt R_(0). |
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Answer» STATEMENT-I is true, statement-II is true, LTBGT statement-II is not the correct explanation of statement-I. |
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