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← ScienceWhich consequence results when an intense localized electric field narrows gallium arsenide's band?
A)Avalanche breakdown occurs in the material✓
B)Dielectric strength increases substantially
C)Minority carrier diffusion length decreases
D)Recombination rate of carriers is limited
💡 Explanation
Avalanche breakdown occurs due to impact ionization; because the *Zener Effect* causes electrons to tunnel through a narrowed band, this enables more ionization events. Therefore, the breakdown voltage falls sharply, rather than increasing the dielectric strength.
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