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← ScienceWhich outcome results when high voltage causes dielectric breakdown in solid barium chloride?
A)Ionic conduction creates localized heating✓
B)Covalent bonds facilitate electron tunneling
C)Hydrogen bonds cause molecular deformation
D)Valence bands enable electron supercurrent
💡 Explanation
Ionic conduction is a key mechanism, because barium chloride contains mobile ions freed by the high applied voltage. Dielectric breakdown then occurs, therefore localized heating increases, rather than promoting band tunneling and electronic super currents.
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