Exercise: Special Purpose Diodes

Questions for: Special Purpose Diodes

The regulating ability of zener diodes depends on their ability to operate in a forward-bias condition.
A:
True
B:
False
C:
D:
Answer: B
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An LED emits light when forward-biased.
A:
True
B:
False
C:
D:
Answer: A
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The ability to keep the reverse current essentially constant is the key feature of the zener diode.
A:
True
B:
False
C:
D:
Answer: B
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With varactor diodes, junction capacitance varies with the amount of forward-bias voltage.
A:
True
B:
False
C:
D:
Answer: B
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When no light is emitted from an LED, the forward current is almost negligible and is called the dark current.
A:
True
B:
False
C:
D:
Answer: B
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