Diode and Photodiode Quiz

What is the other name for Schottky diode?

• Zener diode

• High-voltage diode

• Hot-carrier diode

• Light-emitting diode

What is the difference between Schottky diode and PN junction diode?

• PN junction diode has a higher reverse recovery time

• Schottky diode has a lower forward voltage drop

• Schottky diode has a higher forward voltage drop

• PN junction diode has a lower reverse recovery time

Why can Schottky diodes be switched off much faster than the p-n junction diode?

• Due to the higher reverse recovery time

• Due to the lower forward voltage drop

• Due to the absence of reverse recovery time

• Due to the higher reverse saturation current

What is the reverse recovery time of a diode?

• The time taken by the diode to recover from forward bias

• The time taken by the diode to switch from ON to OFF state

• The time taken by the diode to regain its blocking capability

• The time taken by the diode to recover from reverse bias

What is the working principle of a photodiode?

• It generates sound when exposed to light

• It generates light when exposed to electric current

• It generates electric current when exposed to light

• It generates heat when exposed to light

What are the applications of photodiodes?

• Used in character recognition circuits

• Used in logic circuits

• Used in solar cell panels

• Used in audio amplifiers

Why does voltage increase for a constant current if temperature increases?

• Due to the decrease in resistance

• Due to the increase in resistance

• Due to the decrease in current

• Due to the increase in current

When silicon is doped with indium, it leads to which type of semiconductor?

• N-type semiconductor

• P-type semiconductor

• Intrinsic semiconductor

• Extrinsic semiconductor

What is the ratio of electrons and holes in the intrinsic semiconductor?

• 2:1

• 1:1

• 1:2

• 3:1

Identify which of the three regions is the negative resistance region from the given graph.

• Region 3

• Region 2

• Region 1

• None of the above