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There are 6*10¹⁹ electrons per unit cubic metre of pure semiconductor. What will be the number of holes for this semiconductor of dimension 1 cm*1 cm*2 cm? [Ans: 12*10¹³ ] |
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Answer» udent,◆ Answer -Nh = 1.2×10^14 holes◆ Explaination -No of ELECTRONS in the semiconductor is -NE = 1×10^-2 × 1×10^-2 × 2×10^-2 × 6×10^19Ne = 1.2×10^14 e-We know that no of holes is EQUAL to no of electrons, thus no of holes in semiconductor is 1.2×10^14. i.e. Nh = 1.2×10^14 holes.Hope this HELPS you.. |
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