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     EduGorilla 
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    A germanium sample is doped with phosphorus to an extent of 1 is to 107. Assume that the effective mass of electron is equal to 65% of corresponding true value (Ge concentration = 4.41  1022 cm–3). What will be the location of the Fermi level?

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    1. the Fermi level lies 77.38 eV below edge of conduction band
    2. the Fermi level lies 77.38 eV above edge of conduction band
    3. the Fermi level lies 38.69 eV below edge of conduction band
    4. the Fermi level lies 38.69 eV above edge of conduction band
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