Number of PN Junctions in a Transistor
A. One
B. Two C. Three D. Four
A. One
B. Two C. Three D. Four
Anonymous Quiz
16%
A
62%
B
21%
C
1%
D
The majority carriers in NPN and PNP Transistors are
A. Holes and Electrons
B. Electrons and Holes C. Acceptor Ions and Donor Ions D. None
A. Holes and Electrons
B. Electrons and Holes C. Acceptor Ions and Donor Ions D. None
Anonymous Quiz
24%
A
63%
B
10%
C
3%
D
Two types of Bipolar Junction Transistors (BJTs) are
A. nnn and ppp
B. npn and pnp C. pnn and npp D. nnp and ppn
A. nnn and ppp
B. npn and pnp C. pnn and npp D. nnp and ppn
Anonymous Quiz
8%
A
84%
B
8%
C
1%
D
What are the common faults in BJT?
A. Internal Short
B. Open Bias Resistor C. External Open and D. nnp and ppn
A. Internal Short
B. Open Bias Resistor C. External Open and D. nnp and ppn
Anonymous Quiz
35%
A
33%
B
10%
C
22%
D
Which of the following options defines the diode
A. Is the simplest of semiconductor devices B. Has characteristics that closely match those of a simple switch C. Is a two terminal device D. All the above
A. Is the simplest of semiconductor devices B. Has characteristics that closely match those of a simple switch C. Is a two terminal device D. All the above
Anonymous Quiz
15%
A
17%
B
12%
C
56%
D
Which of the following is also known as emitter follower
A. Common base amplifier B. Common emitter amplifier C. Common collector amplifier D. none of these
A. Common base amplifier B. Common emitter amplifier C. Common collector amplifier D. none of these
Anonymous Quiz
13%
A
35%
B
50%
C
3%
D
An electron in the conduction band ?
A) Is always chargeless B) Has tendency to leave the atom C) Has lower energy than an electron in the valence band D) Has higher energy than an electron in the valence band
A) Is always chargeless B) Has tendency to leave the atom C) Has lower energy than an electron in the valence band D) Has higher energy than an electron in the valence band
Anonymous Quiz
14%
A
22%
B
18%
C
46%
D
The DC Current Gain of a Transistor is
A. Ratio of Emitter Current to Collector Current
B. Ratio of Base Current to Emitter Current C. Ratio of Collector Current to Base Current D. Ratio of Base Current to Collector Current
A. Ratio of Emitter Current to Collector Current
B. Ratio of Base Current to Emitter Current C. Ratio of Collector Current to Base Current D. Ratio of Base Current to Collector Current
Anonymous Quiz
29%
A
30%
B
37%
C
4%
D
In microwave oscillators, negative resistance transistors and diodes are used in order to generate oscillations in the circuit.
a) True
b) False
a) True
b) False
Anonymous Quiz
79%
A
21%
B
Any device with negative impedance as its characteristic property can be called:
a) Energy source
b) Energy sink c) Oscillator d) None of the mentioned
a) Energy source
b) Energy sink c) Oscillator d) None of the mentioned
Anonymous Quiz
21%
A
32%
B
35%
C
11%
D
👏1
For achieving steady state oscillation, the condition to be satisfied in terms of reflection coefficients is:
a) Гin=ГL
b) Гin=-ГL c) Гin=1/ГL d) None of the mentioned
a) Гin=ГL
b) Гin=-ГL c) Гin=1/ГL d) None of the mentioned
Anonymous Quiz
27%
A
37%
B
24%
C
11%
D
To achieve stable oscillation, Zin + ZL=0 is the only necessary and sufficient condition to be satisfied by the microwave oscillator.
a) True
b) False
a) True
b) False
Anonymous Quiz
67%
A
33%
B
In transistor oscillators, FET and BJT are used. Instability is achieved by:
a) Giving a negative feedback
b) Giving a positive feedback c) Using a tank circuit d) None of the mentioned
a) Giving a negative feedback
b) Giving a positive feedback c) Using a tank circuit d) None of the mentioned
Anonymous Quiz
34%
A
35%
B
28%
C
4%
D
The stability of an oscillator is enhanced with the use of:
a) high Q tuning network
b) passive elements c) appropriate feedback methods d) none of the mentioned
a) high Q tuning network
b) passive elements c) appropriate feedback methods d) none of the mentioned
Anonymous Quiz
38%
A
22%
B
37%
C
3%
D
In oscillator tuning circuits, dielectric resonators are preferred over waveguide resonators because:
a) they have high Q factor
b) compact size c) they are easily integrated with microwave integrated circuits d) all of the mentioned
a) they have high Q factor
b) compact size c) they are easily integrated with microwave integrated circuits d) all of the mentioned
Anonymous Quiz
25%
A
25%
B
23%
C
27%
D
A dielectric resonator coupled with an oscillator operates in:
a) TE10δ
b) TE01δ c) TM10δ d) TM01δ
a) TE10δ
b) TE01δ c) TM10δ d) TM01δ
Anonymous Quiz
37%
A
34%
B
24%
C
5%
D
A dielectric resonator is modeled as __________ when it is used as a tuning circuit with a oscillator.
a) series RLC circuit
b) parallel RLC circuit c) LC circuit d) tank circuit
a) series RLC circuit
b) parallel RLC circuit c) LC circuit d) tank circuit
Anonymous Quiz
32%
A
35%
B
20%
C
13%
D
🥰1
Electronics Engineering All Subject Lecturer Videos pinned «https://youtu.be/SYcOT9l1SKc»
Electronics Engineering All Subject Lecturer Videos
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Those who want the leave the channel please leave and who want to remain in channel remains I don't want the students who come for 1 day and leave the channel on the next day because if they want become engineer in 1 day then no need to join the channel.
Electronics Engineering All Subject Lecturer Videos pinned «Those who want the leave the channel please leave and who want to remain in channel remains I don't want the students who come for 1 day and leave the channel on the next day because if they want become engineer in 1 day then no need to join the channel.»