Toggle navigation
Test.Brainkart.com
Home
GATE Exam
TN School
College Entrance Exam
IIT JEE
NEET
AIIMS
CAT
CLAT
TANCET
10th & 12th
11th Std
12th Std
10th Std
Job Entrance Exam
BANK
UGC NET
TNPSC
UNIT X: Semiconductor Electronics and Communication Systems
- Online Test
UNIT X: Semiconductor Electronics and Communication Systems
TEST : 1
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q1.
The barrier potential of a silicon diode is approximately,
A.
0.7 V
B.
0.3 V
C.
2.0 V
D.
2.2 V
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q2.
Doping a semiconductor results in
A.
The decrease in mobile charge carriers
B.
The change in chemical properties
C.
The change in the crystal structure
D.
The breaking of the covalent bond
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q3.
A forward biased diode is treated as
A.
An open switch with infinite resistance
B.
A closed switch with a voltage drop of 0V
C.
A closed switch in series with a battery voltage of 0.7V
D.
A closed switch in series with a small resistance and a battery.
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q4.
If a half –wave rectified voltage is fed to a load resistor, which part of a cycle the load current will flow?
A.
0º – 90º
B.
90º –180º
C.
0º –180º
D.
0º –360º
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q5.
The primary use of a zener diode is
A.
Rectifier
B.
Amplifier
C.
Oscillator
D.
Voltage regulator
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q6.
The principle in which a solar cell operates
A.
Diffusion
B.
Recombination
C.
Photovoltaic action
D.
Carrier flow
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q7.
The light emitted in an LED is due to
A.
Recombination of charge carriers
B.
Reflection of light due to lens action
C.
Amplification of light falling at the junction
D.
Large current capacity
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q8.
When a transistor is fully switched on, it is said to be
A.
Shorted
B.
Saturated
C.
Cut-off
D.
Open
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q9.
The barrier potential of a p-n junction depends on (i) type of semiconductor material (ii) amount of doping (iii) temperature. Which one of the following is correct?
A.
(i) and (ii) only
B.
(ii) only
C.
(ii) and (iii) only
D.
(i) (ii) and (iii)
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT X: Semiconductor Electronics and Communication Systems
# TN 12th Physics
Prepare / Learn
Q10.
To obtain sustained oscillation in an oscillator,
A.
Feedback should be positive
B.
Feedback factor must be unity
C.
Phase shift must be 0 or 2π
D.
All the above
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
Submit My Answer
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1 Mark for Wrong Answer : -0.5 Mark for Left Answer : 0
Save and Share My Score
REDO THIS TEST AGAIN : ( TEST 1 )
START NEXT : ( TEST 2 )
UNIT X: Semiconductor Electronics and Communication Systems
| Online Objective Test |
Start Test
Under Graduate Entrance Exams : IIT JEE IEEE Entrance Exam (Physics)
| Online Objective Test
Start Test
Under Graduate Entrance Exams : NEET Entrance Exam (Physics)
| Online Objective Test
Start Test
Under Graduate Entrance Exams : AIIMS Entrance Exams (Physics)
| Online Objective Test
Start Test
UPSC Civil services Entrance exams : Civil Services Aptitude Test (CSAT) (Physics)
| Online Objective Test
Start Test
TANCET Anna University : EEE Electrical and Electronics Engineering (Physics)
| Online Objective Test
Start Test
TANCET Anna University : ECE Electronics and Communication Engineering (Physics)
| Online Objective Test
Start Test
TANCET Anna University : CSE, IT Computer Science Engineering and Information Technology (Physics)
| Online Objective Test
Start Test
TANCET Anna University : Civil Engineering (Physics)
| Online Objective Test
Start Test
TANCET Anna University : Mechanical Engineering (Physics)
| Online Objective Test
Start Test
TN State Board : TN 12th Standard (Physics)
| Online Objective Test
Start Test
Prepare Before Start Test
| Learn
Engineering
| prepare/Learn
Medical
| prepare/Learn
TN School (10th & 12th )
| prepare/Learn
NEET, JEE
| prepare/Learn
TNPSC Exam
| prepare/Learn
UPSC Civil services Entrance exams
| Online Test
General Studies test
| Start Online Test
Civil Services Aptitude Test (CSAT)
| Start Online Test
Interview and Personality Test
| Start Online Test
GATE Exam
| Online Test
EE Electrical Engineering
| Start Online Test
EC Electronics and Communication Engineering
| Start Online Test
CS Computer Science and Information Technology
| Start Online Test
CE Civil Engineering
| Start Online Test
ME Mechanical Engineering
| Start Online Test
Under Graduate Entrance Exams
| Online Test
IIT JEE IEEE Entrance Exam
| Start Online Test
NEET Entrance Exam
| Start Online Test
AIIMS Entrance Exams
| Start Online Test
Problem Solving and Reasoning
| Online Test
Verbal and Reading Comprehension
| Start Online Test
Data Interpretation and Logical Reasoning
| Start Online Test
Mathematics or Quantitative Aptitude
| Start Online Test
CAT Entrance Exams
| Online Test
Mathematics or Quantitative Aptitude
| Start Online Test
Data Interpretation and Logical Reasoning
| Start Online Test
Verbal and Reading Comprehension
| Start Online Test
CLAT LAW Entrance exams
| Online Test
English including comprehension
| Start Online Test
General Knowledge and Current Affairs
| Start Online Test
Elementary Mathematics
| Start Online Test
Logical and Legal Reasoning Aptitude
| Start Online Test
Banking Entrance exams
| Online Test
Bank PO
| Start Online Test
Bank Clerks
| Start Online Test
Specialist Officers (SO)
| Start Online Test
UGC NET Entrance exams
| Online Test
Science
| Start Online Test
Language
| Start Online Test
TANCET Anna University
| Online Test
EEE Electrical and Electronics Engineering
| Start Online Test
ECE Electronics and Communication Engineering
| Start Online Test
CSE, IT Computer Science Engineering and Information Technology
| Start Online Test
Civil Engineering
| Start Online Test
Mechanical Engineering
| Start Online Test
TN State Board
| Online Test
TN 11th Standard
| Start Online Test
TN 12th Standard
| Start Online Test
TN 10th Standard
| Start Online Test