Transistors: Amplifiers and Switches Quiz

What is the primary function of a transistor in electronic circuits?

• To store electrical energy

• To amplify or switch electronic signals

• To convert AC to DC

• To measure electrical resistance

In a common emitter configuration, what is the phase relationship between the input and output signals?

• 0 degrees

• 90 degrees

• 180 degrees

• 270 degrees

Which region of a transistor is the thinnest and lightly doped?

• Emitter

• Base

• Collector

• Substrate

What is the typical voltage gain range for a common emitter amplifier?

• 1 to 10

• 10 to 100

• 100 to 1000

• 1000 to 10000

In a transistor used as a switch, what are the two states it operates in?

• Active and Saturation

• Cut-off and Active

• Cut-off and Saturation

• Saturation and Breakdown

Which of the following is NOT a mode of operation for a transistor?

• Cut-off

• Active

• Saturation

• Breakdown

In a common emitter configuration, which terminal is common to both input and output?

• Emitter

• Base

• Collector

• Substrate

Which component is primarily responsible for controlling the flow of current in a transistor?

• Emitter

• Base

• Collector

• Substrate