Answers by visitors named: Dickson

charge carrier density here means how many electrons per cm^3 will go into conductivity band For temp1, 31C -> 304.2K 2.25*10^6 = exp( - 2.275*10^-19 / (1.381*10^-23 * 304.2)) For temp2, 175C -> 448.2K x = exp( - 2.275*10^-19 / (1.381*10^-23 * 448.2)) put this into wolfram alpha (2.25*10^6/x) = exp( - 2.275*10^-19 / (1.381*10^-23 * 304.2)) / exp( - 2.275*10^-19 / (1.381*10^-23 * 448.2)) => 8.09*10^13

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L=me

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