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

Field lines are closer to each other in the region where the filed is

Question # 2

In a transistor, collector current is controlled by

Question # 3

Computer chips are made from:

Question # 4

The value of relative permittivity of different dielectrics are

Question # 5

In an N-type silicon, which of the following statement is true

Question # 6

The use of chips in electrons is described in the form of:

Question # 7

.Depletion region contains:

Question # 8

In full wave rectification, simultaneous action is that:

Question # 9

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

Question # 10

Conversion of A.C. into D.C. is called:

Question # 11

Op-amp has been discussed as comparator of:

Question # 12

All the valence electrons present in a crystal of silicon are bound in their orbits by

Question # 13

The number of LED'S needed to display all the digits is:

Question # 14

The values 1 and 0 are designated as:

Question # 15

In the forward biases situation, the current flowing across the p-n junction is a few:

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
  • S
    suzi 11 - Feb - 2026 00 Min 35 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
    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 Depletion region contains:
A. Protons
B. Positive ions
C. Negative ions
D. Both (B) and (C)
2 All the valence electrons present in a crystal of silicon are bound in their orbits by
A. Ionic bond
B. covalent bond
C. Molecular bond
D. Both (A) and (B)
3 Whenever a covalent bond breaks, it creates:
A. An electron
B. A hole
C. An electron-hole pair
D. A positron
4 An LED emits light when it is:
A. Forward biased
B. Reverse biased
C. Operated without battery
D. Operated with heat source
5 A transistor has:
A. One region
B. Two regions
C. Three regions
D. Four regions
6 Crystal of germanium or silicon in its pure form at absolute zero acts as:
A. A conductor
B. A semiconductor
C. an insulator
D. Both (A) and (C)
7 In full wave rectification, simultaneous action is that:
A. Two diodes conduct and two do not.
B. One diode conduct and three do not.
C. Three diodes conduct and one does not.
D. All the four diodes conduct
8 Conversion of A.C. into D.C. is called:
A. Reftification
B. Amplification
C. Electric induction
D. Magnetic induction
9 In a transistor, collector current is controlled by
A. Collector voltage
B. Base current
C. Collector resistance
D. All of the above
10 If both the inputs given to a gate ae 1 such that the output is 0, then it is:
A. AND gate
B. NOR gate
C. OR gate
D. NOT gate

Test Questions

Is this page helpful?