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As per Matthiessen's rule, the total resistivity r of a conductor can be written as r = ri + aT, where ri and a are constants and T is absolute temperature. At very low temperatures | |
A. | aT = 0 [Wrong Answer] |
B. | aT > ri [Wrong Answer] |
C. | aT ∼ ri [Wrong Answer] |
D. | aT < ri [Correct Answer] |