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Electronic Devices - Special-Purpose Diodes

Exercise : Special-Purpose Diodes - General Questions
26.
Back-to-back varactor diodes are used for what reason?
over-voltage protection
a wider tuning range
to eliminate harmonic distortion
no reason; only zeners are used in a back-to-back configuration
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
A tunnel diode is used
in high-power circuits.
in circuits requiring negative resistance.
in very fast-switching circuits.
in power supply rectifiers.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
What type of diode is commonly used in electronic tuners in TVs?
varactor
Schottky
LED
Gunn
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
A laser diode normally emits
coherent light.
monochromatic light.
coherent and monochromatic light.
neither coherent nor monochromatic light.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
A varactor is a pn junction diode that always operates in ________-bias and is doped to ________ the inherent capacitance of the depletion region.
forward, maximize
reverse, maximize
reverse, minimize
forward, minimize
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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