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At very high temperatures the extrinsic semi conductors become intrinsic because | |
A. | drive in diffusion of dopants and carriers [Wrong Answer] |
B. | band to band transition dominants over impurity ionization [Correct Answer] |
C. | impurity ionization dominants over band to band transition [Wrong Answer] |
D. | band to band transition is balanced by impurity ionization [Wrong Answer] |