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What is fermi level and fermi energy?...

What is fermi level and fermi energy?

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In an energy band, the highest energy level occupied by electron at 0K is called fermi level and its energy is called fermi-energy.
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1 Fermi

In.............semiconductor, the fermi level lies in the energy gap, very close to valence band.

Knowledge Check

  • One fermi is

    A
    `10^(-15)` cm
    B
    `10^(-13)` cm
    C
    `10^(-10)` cm
    D
    `10^(-12)` cm

  • One fermi is

    A
    (a)`10^(-13) m `
    B
    (b)` 10^(-15) m`
    C
    (c )` 10^(-10) m`
    D
    (d)` 10^(-12) m`

  • The value indicated by fermi energy level in an intrinsic semiconductor is

    A
    the average energy of electrons and holes
    B
    the energy of electrons in conduction band
    C
    the energy of holes in valence band
    D
    the energy of forbidden region

    • Similar Questions

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    In.............semiconductor, the fermi level lies in the energy gap, very close to conduction band.

    What is the basic distinction between x-ray energy levels and ordinary energy levels ?

    In a head-on collision between and alpha -particle and a gold nucleus, the distance of closest approach is 4.13 fermi. Calculate the energy of the particle. (1 fermi = 10^(-15) m )

    In a head-on collision between an alpha -particle and a gold nucleus, the distance of closest approach is 39.5 fermi. Calculate the energy of alpha -particle. For gold Z=79 .

    In a head on collision between an alpha particle and gold nucleus (Z=79), the distance of closest approach is 39.5 fermi. Calculate the energy of alpha -particle.

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