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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
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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 18 Electronics Physics
00:00
Question # 1
To make an LED, it is impreacticable to use:
Question # 2
Truth table of logic function:
Question # 3
In full wave rectification, simultaneous action is that:
Question # 4
The SI unit of charge is
Question # 5
A diode which can turn its current ON and OFF in nono seconds is called:
Question # 6
The number of input terminals of an op-amp is:
Question # 7
Electric lines of force
Question # 8
The values 1 and 0 are designated as:
Question # 9
Conversion of A.C. into D.C. is called:
Question # 10
A transistor has:
Question # 11
The reverse saturation current in a PN junction diode is only due to
Question # 12
Majority charge carriers in the p-region of p-n junction are:
Question # 13
By placing a dielectric in between the charges, the electrostatic force between them
Question # 14
A digital system deals with quantities which has discrete values:
Question # 15
In AND gate, the output is 1 if:
Top Scorers Of Physics ECAT Pre Engineering Chapter 18 Electronics Physics MCQ`s Test
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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 | Depletion region contains: |
A. Protons
B. Positive ions
C. Negative ions
D. Both (B) and (C)
|
| 2 | When transistors are used in digital circuits they usually operate in the |
A. Active region
B. Breakdown region
C. Saturation and cutoff regions
D. Linear region
|
| 3 | Improper biasing of a transistor circuit produces |
A. Heavy loading of emitter current
B. Distortion in the output signal
C. Excessive heat at collector terminal
D. Faulty location of load line
|
| 4 | Field lines are closer to each other in the region where the filed is |
A. Stronger
B. Weaker
C. Much weaker
D. Absent
|
| 5 | A transistor has: |
A. One region
B. Two regions
C. Three regions
D. Four regions
|
| 6 | The reverse saturation current in a PN junction diode is only due to |
A. Majority carriers
B. Minority Carriers
C. Acceptor ions
D. Donor ions
|
| 7 | Truth table of logic function: |
A. Summarizes its output values
B. Tabulates all its input conditions only
C. Display all its input/output possibilites
D. Is not based on logic algebra
|
| 8 | The value of relative permittivity of different dielectrics are |
A. Equal
B. Different
C. Greater than one
D. Smaller than one
|
| 9 | To make an LED, it is impreacticable to use: |
A. Silicon
B. Gallium arsenide
C. Gallium arsenide phosphide
D. Iron
|
| 10 | The SI unit of charge is |
A. Ampere
B. Watt
C. Coulomb
D. Volt
|
Test Questions
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SHAHID FAROOQ
21 Jun 2019good practice forprepration of test