ECAT Pre Engineering Physics Chapter 18 MCQ Test With Answer

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

Start Test Download PDF

Physics ECAT Pre Engineering Chapter 18 Electronics Physics

00:00
Question # 1

Crystal of germanium or silicon in its pure form at absolute zero acts as:

Question # 2

Michael Faraday is known by his work on

Question # 3

Inverter is the name given to:

Question # 4

By placing a dielectric in between the charges, the electrostatic force between them

Question # 5

Majority charge carriers in the p-region of p-n junction are:

Question # 6

Electric field lines emerge from the charges in

Question # 7

Depletion region contains:

Question # 8

An LED emits light when it is:

Question # 9

.Depletion region contains:

Question # 10

Origin of the electric and the gravitational forces

Question # 11

In the text book, the transistor amplifier circuit is a:

Question # 12

When transistors are used in digital circuits they usually operate in the

Question # 13

The reverse saturation current in a PN junction diode is only due to

Question # 14

In AND gate, the output is 1 if:

Question # 15

Silicon is one of the mot commonly used:

Submit

Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 18 Electronics Physics MCQs Online With Answers


Topic Test

00:00
Submit

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 Class Physics Chapter 18 Important MCQ's

Sr.# Question Answer
1 Majority charge carriers in the p-region of p-n junction are:
A. electrons
B. positrons
C. Holes
D. Neutrons
2 Electric field lines emerge from the charges in
A. One dimension
B. Two dimensions
C. Three dimensions
D. Four dimensions
3 Op-amp has been discussed as comparator of:
A. Distances
B. Voltages
C. Velocities
D. Magnetic fields
4 To turn the transistor OFF, the base current is set:
A. At maximum value
B. At zero
C. Either (A) or (B)
D. All are correct
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 To designate the voltage as low or 0 by a logic gate, the specified minimum value is:
A. 0.2 volt
B. 0.8 volt
C. 0 volt
D. 2.0 volt
7 An LED emits light when it is:
A. Forward biased
B. Reverse biased
C. Operated without battery
D. Operated with heat source
8 Depletion region contains:
A. Protons
B. Positive ions
C. Negative ions
D. Both (B) and (C)
9 A hole in p-type my be due to:
A. Trivalent impurity
B. Breking of some covalent bond
C. Pentavalent impurity
D. Germanium
10 In describing function of digital systems, 1 represents:
A. Closed switch
B. True Statement
C. Lighted bulb
D. Only (B) and (C)

Test Questions

Is this page helpful?