Podcast
Questions and Answers
What is the function of a signal diode?
What is the function of a signal diode?
- Control voltage
- Allow flow of current in one direction
- Used in signal circuits (correct)
- Convert AC to DC
What is the standard symbol for a semiconductor diode showing the direction of whole current?
What is the standard symbol for a semiconductor diode showing the direction of whole current?
- Bar without an arrow
- Arrow without a bar
- Arrow and bar (correct)
- Dot or band
What does the positive mark at the cathode side of a diode indicate?
What does the positive mark at the cathode side of a diode indicate?
- This is the terminal for positive in the direction of conventional current flow (correct)
- This is the terminal for negative in the direction of conventional current flow
- This indicates that current cannot flow in this direction
- This is the anode of the diode
What is the process of converting alternating current into direct current called?
What is the process of converting alternating current into direct current called?
In which direction is the conduction assumed to be, for those accustomed to electron flow?
In which direction is the conduction assumed to be, for those accustomed to electron flow?
What are small silicon diodes commonly used as?
What are small silicon diodes commonly used as?
What is one of the most common uses for semiconductor diodes?
What is one of the most common uses for semiconductor diodes?
What is one of the most important characteristics of a Zener diode?
What is one of the most important characteristics of a Zener diode?
Why is silicon used in almost all solid-state devices compared to germanium?
Why is silicon used in almost all solid-state devices compared to germanium?
What type of diode is used as a voltage regulator?
What type of diode is used as a voltage regulator?
Why is a heat sink used with diodes?
Why is a heat sink used with diodes?
What is the most common use of a regulator circuit?
What is the most common use of a regulator circuit?
What is used to check a solid-state diode?
What is used to check a solid-state diode?
What is the forward resistance reading of a good diode?
What is the forward resistance reading of a good diode?
What type of diode has a much higher current rating when equipped with heat?
What type of diode has a much higher current rating when equipped with heat?
What characteristic do large silicon diodes have compared to selenium diodes?
What characteristic do large silicon diodes have compared to selenium diodes?
Why does a transistor amplify current?
Why does a transistor amplify current?
What type of signal is converted to an electrical signal for amplification?
What type of signal is converted to an electrical signal for amplification?
What type of waveform is monitored in an electronic test instrument like an oscilloscope?
What type of waveform is monitored in an electronic test instrument like an oscilloscope?
In what state is a transistor alternately operated when used as an electronic switch?
In what state is a transistor alternately operated when used as an electronic switch?
What does a very low reading with both polarities indicate when testing the PN and NP junctions of a transistor?
What does a very low reading with both polarities indicate when testing the PN and NP junctions of a transistor?
What characteristic of large silicon diodes distinguishes them from selenium diodes?
What characteristic of large silicon diodes distinguishes them from selenium diodes?
What are the two principal semiconductor materials used in transistors?
What are the two principal semiconductor materials used in transistors?
What does NPN stand for in the context of transistors?
What does NPN stand for in the context of transistors?
What is the function of the base in a transistor?
What is the function of the base in a transistor?
Why is silicon generally used for NPN bipolar junction transistors?
Why is silicon generally used for NPN bipolar junction transistors?
What does an NPN transistor simply consist of in terms of semiconductor materials?
What does an NPN transistor simply consist of in terms of semiconductor materials?
In medium power-type transistors, how is the collector connected internally?
In medium power-type transistors, how is the collector connected internally?
