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Which outcome occurs when the Fermi-Dirac distribution approaches absolute zero?

A)All electrons occupy lowest energy
B)Electrons exhibit increased thermal excitation
C)Semiconductors become intrinsically conductive
D)Superconductivity immediately ceases to exist

💡 Explanation

The Pauli exclusion principle's **energy quantization** fills available lowest energy states first because electrons, being fermions, cannot occupy the same quantum state. Therefore all electrons reside close to the minimum available energy, rather than displaying increased thermal excitation above zero degrees.

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