diode other 16 questions 2

Atomic structure of pure semiconductors:

• Diamond cubic structure.

• diamond cubic

• circle cubic structure

• none of the above

Most common semiconductor for electronics?

• silicon

• Ruber

• iron

• none of the above

Sharing of outer-orbit electrons in semiconductors

• Covalent bonding

• iron bonding

• none of the above

• both

Effect on semiconductor resistance:

• Decreases resistance

• increases resistance

• stays the same

• none of the above

Current in P-type material is conducted by:

• Movement of holes

• movement of electrons

• movement of protons

• none of the above

Diode testing with an ohmmeter shows low resistance in one direction and high resistance in the other direction.

• Working properly

• not working properly

Purpose of a rectifier diode

• Convert AC to DC

• redirects the current flow

• redirects power

• none of the above

Purpose of a circuit control diode?

• Allows current to flow in one direction.

• none of the above

• both

• redirects the current flow

Purpose of a clamping or despiking diode?

• Protect against voltage spikes.

• detects voltage spikes

• none of the above

• both

Operating principles of a varicap diode

• Varicap diode varies capacitance with reverse voltage.

  
  

• makes current

• none of the above

• both