Semiconductor Diode MCQs | Semiconductor Diode Multiple Choice Questions and Answers
Questions
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4
An ideal crystal diode is one which behaves as a perfect ……….. when forward biased.
Answer: conductor
5
The ratio of reverse resistance and forward resistance of a germanium crystal diode is about ………….
Answer: 40,000 : 1
6
The leakage current in a crystal diode is due to …………….
Answer: Minority Carriers
7
The PIV rating of a crystal diode is ………….. that of equivalent vacuum diode
Answer: Lower Than
8
The knee voltage of a crystal diode is approximately equal to ………….
Answer: Barrier Potential
10
A crystal diode utilises …………….. characteristic for rectification
Answer: Forward
11
Lets assume that the doping density in the p-region is 10-9 cm-3 & in the n-region is 10-17cm-3, as such the p-n junction so formed would be termed as a
Answer: p+ n–
12
In the p & n regions of the p-n junction the _________ & the ___________ are the minority charge carriers respectively.
Answer: electrons, holes
13
Which of the below mentioned statements is false regarding a p-n junction diode?
Answer: Diodes have three terminals
15
The most widely used rectifier is ……………….
Answer: bridge full-wave rectifier
16
The p-region has a greater concentration of __________ as compared to the n-region in a P-N junction.
Answer: holes
17
The n-region has a greater concentration of _________ as compared to the p-region in a P-N junction diode.
Answer: electrons
18
A p-type semiconductor material is doped with ____________ impurities whereas a n-type semiconductor material is doped with __________ impurities
Answer: acceptor, donor
19
In the breakdown region, a zener didoe behaves like a …………… source.
Answer: constant voltage
