an unknown semiconductor has Eg=1.1ev and Nv=Nc.it is doped with 10^15 donors,where the donor level is 0.2ev below Ec. given that Ef is 0.25ev below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300k.

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Compute kb for cyclohexane : Paradichlorobenzene, C6H4Cl2 is a component of mothballs. A solution of 2.00 g in 22.5 g of cyclohexane boils at 82.39 C . The boiling point of pure cyclohexane is 80.70 C. Calculate Kb for cyclohexane. Express the constant numerically in degrees C.. |

Calculate ni and the concentration of electrons : an unknown semiconductor has Eg=1.1ev and Nv=Nc.it is doped with 10^15 donors,where the donor level is 0.2ev below Ec. given that Ef is 0.25ev below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300k. |

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How many permits will each firm buy and sell : There are three industrial firms in Happy Valley. FIRM INITIAL COST OF REDUCING POLLUTION LEVEL POLLUTION BY 1 UNIT A 70 units $20 B 80 25 C 50 10 The government wants to reduce pollution to 120 units, so it gives each firm 40 tradable pollution p.. |

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At what angle to the normal does the transmitted wave travel : a plane wave is obliquely incident onto the planar interface between mismatched, lossless, nonmagnetic, uniform media, yet undergoes no reflection. If incidence is at 54 degrees to the normal, at what angle to the normal does the transmitted wave .. |

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