Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 15
15. In forward biasing of the $p-n$ junction [2011]
(a) the positive terminal of the battery is connected to $p$-side and the depletion region becomes thick
(b) the positive terminal of the battery is connected to $n$-side and the depletion region becomes thin
(c) the positive terminal of the battery is connected to $n$-side and the depletion region becomes thick
(d) the positive terminal of the battery is connected to $p$-side and the depletion region becomes thin
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Answer:
Correct Answer: 15. (d)
Solution:
- (d) In forward biasing of the p-n junction, the positive terminal of the battery is connected to $p$-side and the negative terminal of the battery is connected to $n$-side. The depletion region becomes thin.
An ideal junction diode when forward biased offers zero resistance. Voltage drop across such a junction diode is zero. In reverse bias diode offers infinite resistance and voltage drop across it is equal to voltage applied.
