Under which of the following conditions, does an avalanche breakdown in a semiconductor diode occur?
Text Solution
Verified by ExpertsThe correct answer is:
B
Avalanche breakdown occurs in a reverse-biased semiconductor diode.
When the reverse voltage across the diode exceeds a critical value, the electric field becomes strong enough to accelerate free electrons to high velocities.
These high-energy electrons collide with atoms in the lattice, creating more electron-hole pairs, leading to a chain reaction (avalanche).
This results in a sudden large reverse current.
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