Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
.jpg)
MCQ's Test For Physics ECAT Pre Engineering Chapter 18 Electronics Physics
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 18 Electronics Physics
-
Total Questions15
-
Time Allowed20
Physics ECAT Pre Engineering Chapter 18 Electronics Physics
00:00
Question # 1
Electric intensity at a place due to a charged conductor is a
Question # 2
Op-amp has been discussed as comparator of:
Question # 3
Truth table of logic function:
Question # 4
Majority charge carriers in the p-region of p-n junction are:
Question # 5
If the distance between two charges is doubled, the force between them will become
Question # 6
A transistor has:
Question # 7
A potential barrier of 0.7 V exists across p-n junction made from:
Question # 8
Most of the electrons in the base of an NPN transistor flow
Question # 9
Electric field strength is defined as
Question # 10
The electric field lines start from
Question # 11
Whenever a covalent bond breaks, it creates:
Question # 12
An LED emits light when it is:
Question # 13
Michael Faraday is known by his work on
Question # 14
A hole in p-type my be due to:
Question # 15
In AND gate, the output is 1 if:
Top Scorers Of Physics ECAT Pre Engineering Chapter 18 Electronics Physics MCQ`s Test
-
S Sadaf Batool 21 - May - 2024 00 Min 02 Sec 60/60 -
M Muhammad Sufyan 01 - Jun - 2024 00 Min 04 Sec 60/60 -
M M Umer Arain 10 - Dec - 2024 00 Min 08 Sec 60/60 -
F Farzand Shah Farzand Shah 23 - Apr - 2024 00 Min 58 Sec 60/60 -
B Bilal Javed 10 - Mar - 2024 02 Min 03 Sec 60/60 -
D Danish Mehmood Awan 21 - May - 2024 03 Min 01 Sec 60/60 -
H Huzaifa Asim 26 - May - 2024 09 Min 51 Sec 60/60 -
A Arian Ahmed 09 - Mar - 2024 00 Min 02 Sec 55/60 -
Y Yusra Khalid 07 - Mar - 2024 00 Min 20 Sec 55/60 -
A Aarij 08 - Dec - 2024 01 Min 09 Sec 55/60 -
A Afzan Ali 03 - Jun - 2024 02 Min 04 Sec 55/60 -
H HASSAAN Hello (H.S LEGEND) 07 - Mar - 2024 03 Min 00 Sec 50/60 -
H Haniya Ali 10 - Mar - 2024 03 Min 08 Sec 50/60 -
F Fatima Muqarrab 20 - May - 2024 03 Min 46 Sec 50/60 -
S Sakhawat Jutt 29 - Aug - 2024 06 Min 08 Sec 50/60
ECAT Physics Chapter 18 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | To display a digit of EIGHT, the number of ON LED'S are: |
A. Two
B. Three
C. Five
D. Seven
|
| 2 | In an N-type silicon, which of the following statement is true |
A. Electrons are majority carriers and trivalent atoms are the dopants
B. Electrons are minority carriers and pentavalent atoms are the dopants
C. Holes are minority carriers and pentavalent atoms are the dopants
D. Holes are majority carriers and trivalent atoms are the dopants
|
| 3 | To make an LED, it is impreacticable to use: |
A. Silicon
B. Gallium arsenide
C. Gallium arsenide phosphide
D. Iron
|
| 4 | In describing function of digital systems, 1 represents: |
A. Closed switch
B. True Statement
C. Lighted bulb
D. Only (B) and (C)
|
| 5 | The value of LDR depends upon intensity of: |
A. Sound falling on it
B. Current passing through it
C. Magnetic field surrounding it
D. Light falling on it
|
| 6 | A hole in p-type my be due to: |
A. Trivalent impurity
B. Breking of some covalent bond
C. Pentavalent impurity
D. Germanium
|
| 7 | The intensity at a point due to a charge is inversely proportional to |
A. Amount of charge
B. Size of the charge
C. Distance between charge and the point
D. Square of the distance from the charge
|
| 8 | In the text book, the transistor amplifier circuit is a: |
A. Common emitter circuit
B. Common collector circuit
C. Common base circuit
D. Any of these
|
| 9 | Michael Faraday is known by his work on |
A. Nuclear strong force
B. Gravitational force
C. Nuclear weak force
D. Electric force
|
| 10 | Electric lines of force |
A. Intersect each other
B. Are always parallel
C. Are always anti-parallel
D. Never intersect
|
Test Questions
Share your comments & questions here
SHAHID FAROOQ
21 Jun 2019good practice forprepration of test