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Which consequence results when exceeding the Zener breakdown voltage in a semiconductor diode?

A)Increased forward current conduction
B)Reduced depletion region capacitance
C)Electron flow from valence band
D)Hole injection into conduction band

💡 Explanation

Exceeding Zener voltage forces electrons to tunnel from the valence band to the conduction band via Quantum Tunneling, because high electric field narrows the barrier; therefore, increased reverse current occurs, rather than forward conduction or changes in capacitance at typical voltages.

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