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electronics and communication engineering electronic devices and circuits
1. A sample of N type semiconductor has electron density of 6.25 x 108/cm2 at 300 K. If the intrinsic concentration of carriers in this sample is 2.5 x 1013/cm3 at this temperature, the hole density works out to be
(A): 1010/cm3
(B): 106/cm3
(C): 108/cm3
(D): 10l2/cm3
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