WorksheetsBY : O M V R
Total questions: 14
Worksheet time: 7mins
Which junction in an n-p-n BJT controls the flow of current between the emitter and the collector?
Emitter-base junction
Neither junction alone
Base-collector junction
Both junctions equally
In a p-n-p BJT, which type of charge carrier is injected from the emitter into the base?
Holes
Electrons
Both equally
None
What is amplification?
Process of increasing voltage
Process of decreasing voltage
Process of converting voltage to current
Process of converting current to voltage
How is voltage gain defined?
Ratio of input voltage to output voltage
Ratio of output voltage to input voltage
Product of input and output voltage
Difference between input and output voltage
Name two factors that determine the voltage gain of an amplifier.
Resistance and capacitance
Inductance and impedance
Transconductance and transresistance
Resistance and transconductance
What is the voltage gain of a transistor amplifier that has an output of 5 V rms and an input of 250 mV rms?
25
15
20
10
The BJT is constructed with how many doped semiconductor regions?
Five
Four
Three
Two
What type of semiconductor forms the emitter region in an n-p-n BJT?
Doped silicon
Intrinsic
P-type
N-type
What are the three terminals of a BJT?
Anode, Cathode, Gate
Emitter, Base, Collector
Input, Output, Ground
Source, Gate, Drain
What is the dc current gain of a transistor called?
DC alpha
DC beta
DC gamma
DC delta
What is the ratio of the dc collector current to the dc emitter current called?
DC gamma
DC beta
DC delta
DC alpha
What is the term used for the state of a BJT in which the collector current has reached a maximum and is independent of the base current?
Saturation
Amplification
Cut-off
Active region
What is the voltage across the reverse-biased collector-base junction in a BJT?
VCE
VBC
VRC
VBE
What is the ac voltage gain of a BJT amplifier if the ratio of collector resistance to emitter resistance is 10?
20
5
10
15
