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← ScienceWhich consequence results when a highly doped semiconductor experiences breakdown?
A)Zener tunneling allows reverse conduction✓
B)Thermal runaway causes lattice destruction
C)Avalanche multiplication creates free carriers
D)Kirk effect reduces transistor gain
💡 Explanation
Zener breakdown causes reverse conduction, because when the electric field is high, electron quantum tunneling promotes electrons directly from the valence band to the conduction band, therefore reverse current flows, rather than thermal effects dominating.
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