Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Avalanche breakdown is due to –

Options:

Collision of minority charge carrier

Increase in depletion layer thickness

Decrease in depletion layer thickness

None of these

Correct Answer:

Collision of minority charge carrier

Explanation:

At high reverse voltage, the minority charge carriers, acquires very high velocities. These by collision break down the covalent bonds, generating more carriers. This mechanism is called Avalanche breakdown.