BJT Quiz
easy
15 Questions
Question 1 of 15
What does BJT stand for?
BJT is the acronym for Bipolar Junction Transistor.
Question 2 of 15
How many terminals does a BJT have?
A BJT has three terminals: Base, Collector, and Emitter.
Question 3 of 15
Which terminal controls the current flow in a BJT?
The base terminal controls the current flow between collector and emitter.
Question 4 of 15
What are the two main types of BJTs?
BJTs are classified into PNP and NPN types based on doping.
Question 5 of 15
In an NPN transistor, the collector is typically:
In NPN transistors, the collector is biased positively with respect to the emitter.
Question 6 of 15
What is the primary function of a BJT?
BJTs are primarily used for amplification or as electronic switches.
Question 7 of 15
Which region of operation is typically used for a BJT acting as a switch?
Saturation (ON) and Cutoff (OFF) are used when the BJT acts as a switch.
Question 8 of 15
What is the current gain of a BJT represented by?
The current gain is most commonly represented by ?.
Question 9 of 15
The relationship between collector current (Ic), base current (Ib) and emitter current (Ie) is given by:
Kirchhoff's Current Law applies at the emitter node: Ie = Ic + Ib.
Question 10 of 15
What biasing configuration is commonly used to ensure stable operating point?
All the listed bias configurations are used for biasing and ensuring stable operation.
Question 11 of 15
In the active region, the base-emitter junction is ____ biased and the base-collector junction is _____ biased.
Active region requires forward bias (BE) and reverse bias (BC).
Question 12 of 15
Which of the following is NOT a terminal of a BJT?
Cathode is a term used with diodes or vacuum tubes, not BJTs.
Question 13 of 15
What is the typical value of ? (beta) for a BJT?
Beta (?) usually ranges between 10 to several hundred or more.
Question 14 of 15
What happens to the collector current in the cutoff region?
In cutoff, the transistor is OFF, and collector current is negligible.
Question 15 of 15
In the saturation region, the BJT acts like a(n):
In saturation, the transistor is fully ON, behaving like a closed switch.
1 / 15