Two initially identical samples A and B of pure germanium are doped with donors to concehtration of 2x10 and 4x10 respectively. If the bole concentration in A is 8x1012 then the hole concentration in B at the same temperature will be . 4x1013 m3 O 3x1012 m 3 O 11x10-12 m-3 4. 32x1013 m3O

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