E6B: Semiconductor diode
E6B01:
What is the principal characteristic of a Zener diode?
A constant voltage under conditions of varying current
A constant current under conditions of varying voltage
A negative resistance region
An internal capacitance that varies with the applied voltage
E6B02:
What is the principal characteristic of a tunnel diode?
A negative resistance region
A high forward resistance
A very high PIV
A high forward current rating
E6B03:
What is an important characteristic of a Schottky Barrier diode as compared to an ordinary silicon diode when used as a power supply rectifier?
Less forward voltage drop
Much higher reverse voltage breakdown
Controlled reverse avalanche voltage
Enhanced carrier retention time
E6B04:
What special type of diode is capable of both amplification and oscillation?
Tunnel
Point contact
Zener
Junction
E6B05:
What type of semiconductor device varies its internal capacitance as the voltage applied to its terminals varies?
Varactor diode
Tunnel diode
Silicon-controlled rectifier
Zener diode
E6B06:
In Figure E6-3, what is the schematic symbol for a varactor diode?
1
8
6
2
E6B07:
What is a common use of a hot-carrier diode?
As a VHF / UHF mixer or detector
As balanced mixers in FM generation
As a variable capacitance in an automatic frequency control circuit
As a constant voltage reference in a power supply
E6B08:
What limits the maximum forward current rating in a junction diode?
Junction temperature
Peak inverse voltage
Forward voltage
Back EMF
E6B09:
Which of the following describes a type of semiconductor diode?
Metal-semiconductor junction
Electrolytic rectifier
CMOS-field effect
Thermionic emission diode
E6B10:
What is a common use for point contact diodes?
As an RF detector
As a constant current source
As a constant voltage source
As a high voltage rectifier
E6B11:
In Figure E6-3, what is the schematic symbol for a light-emitting diode?
5
1
6
7
E6B12:
How are junction diodes rated?
Maximum forward current and PIV
Maximum forward current and capacitance
Maximum reverse current and PIV
Maximum reverse current and capacitance
E6B13:
What is one common use for PIN diodes?
As an RF switch
As a constant current source
As a constant voltage source
As a high voltage rectifier
E6B14:
What type of bias is required for an LED to produce luminescence?
Forward bias
Reverse bias
Zero bias
Inductive bias
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