Question 1
How many degrees of freedom does a diatomic molecule have?
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3
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6
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5
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7
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9
Question 2
If an electric field is applied to a metal
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very few electrons are excited into the conduction band.
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electrons having energies near the Fermi energy require only a small amount of additional energy from the applied field to reach nearby empty energy states.
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electrons having energies near the bottom of the band require only a small amount of additional energy from the applied field to reach nearby empty energy states.
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the principal mode of conduction is through the motion of holes in the filled part of the band.
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the Fermi energy Ef becomes equal to the applied electric field E.