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← ScienceWhich mechanism changes material conductivity when an electric field distorts molecular orbitals?
A)Band structure modulation increases carriers✓
B)Phonon scattering decreases electron mobility
C)Spin polarization creates magnetic domains
D)Dielectric breakdown forms conductive pathways
💡 Explanation
When an electric field distorts molecular orbitals, band structure modulation occurs because the energy levels are altered, changing the number of available charge carriers, thus affecting conductivity. Therefore increased carriers occur, rather than scattering, polarization, or breakdown, which depend on different material properties.
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