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← ScienceWhich consequence results when a dielectric with small defects is persistently exposed to intense Microwave radiation?
A)Reduced radiation source power efficacy
B)Localized material dielectric catastrophic breakdown✓
C)Increased wave transmission dielectric permeability
D)Propagation of standing resonant destructive waves
💡 Explanation
Dielectric breakdown occurs because imperfections concentrate microwave fields. This initiates avalanche ionization; therefore, increased voltage leads to material failure rather than increased transmission, because localized currents overwhelm the material's resistance.
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