Pre Requisite Quiz

Which among the following is the most widely used semiconductor material?

• a) Potassium
• b) Phosphorous
• c) Silicon
• d) Arsenic

___________ is/are added to intrinsic semiconductor to make extrinsic semiconductor.

• Electrons
• Impurity
• Charge carriers
• Holes

Which of the following has largest number of free electrons

• Intrinsic Semiconductor
• Extrinsic Semiconductor
• Conductor
• Insulator

The cut in voltage of Si and Ge are ________ and ________.

• 0.7V, 0.5V
• 0.3V, 0.7V
• 0.5V, 0.7V
• 0.7V, 0.3V

The number of valence electrons of P and B are

• 5 and 3
• 3 and 5
• 3 and 4
• 4 and 5

NPN Transistor has following arrangement

• N type Base, P type Collector, N type Emitter
• N type Collector, P type Emitter, N type Base
• N type Collector, P type Base, N type Emitter
• None of the above

The symbol is of ___________

• Diode
• NPN Transistor
• PNP Transistor
• Thermistor