In reverse biased diode when huge current starts to flow is called:
Correct answer: A. Avatanche effect
- A. Avatanche effect
- B. Break down of a diode
- C. Rectification
- D. Negative curent
Explanation
When a large current starts to flow in a reverse biased diode, it is known as the "avatanche effect." This happens when the reverse voltage applied to the diode exceeds a certain threshold, causing a rapid increase in current due to the generation and multiplication of charge carriers within the diode. It's like a cascade or an avalanche of charge carriers.
This question appeared on the KMU Centralized Admission Test 2020 paper, which you can sit online with every answer explained.
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About PN Junction
A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.
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