The Full Wiki

Diode: Quiz

  
  

Question 1: What does the following picture show?

  Figure 2: Various semiconductor diodes. Bottom: A bridge rectifier. In most diodes, a white or black painted band identifies the cathode terminal, that is, the terminal which conventional current flows out of when the diode is conducting.
  Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left).
  Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left).
  Figure 8: Several types of diodes. The scale is centimeters.

Question 2: What does the following picture show?

  Figure 8: Several types of diodes. The scale is centimeters.
  Figure 8: Several types of diodes. The scale is centimeters.
  Figure 3: Structure of a vacuum tube diode. The filament may be bare, or more commonly (as shown here), embedded within and insulated from an enclosing cathode

Question 3: Normal (p-n) diodes, which operate as described above, are usually made of doped silicon or, more rarely, ________.
GermaniumYttriumZincIridium

Question 4: For example, diodes are used in (stepper motor and H-bridge) ________ and relay circuits to de-energize coils rapidly without the damaging voltage spikes that would otherwise occur.
Variable-frequency driveBrushed DC electric motorElectric motorMotor controller

Question 5: The value is different for other diode types — Schottky diodes can be rated as low as 0.2 V and red or blue ________ (LEDs) can have values of 1.4 V and 4.0 V respectively.
Light-emitting diodeLED lampFluorescent lampGas-discharge lamp

Question 6: The vast majority of all diodes are the p-n diodes found in ________ integrated circuits, which include two diodes per pin and many other internal diodes.
Logic gateVery-large-scale integrationCMOSMOSFET

Question 7: Silicon and germanium are quite different in their ability to convert ________ to electron showers.
X-rayNuclear fissionGamma rayNuclear fusion

Question 8: In addition to light, mentioned above, ________ diodes are sensitive to more energetic radiation.
Condensed matter physicsPhysicsSemiconductorQuantum mechanics

Question 9: Today most diodes are made of silicon, but other semiconductors such as ________ are sometimes used.
YttriumIridiumZincGermanium

Question 10: However, the width of the depletion region (called the ________) cannot grow without limit.
Bipolar junction transistorField-effect transistorDepletion regionDiode
















Got something to say? Make a comment.
Your name
Your email address
Message