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MCQ's Test For MDCAT Physics Chapter 14 Electronics MCQ's Test
Try The MCQ's Test For MDCAT Physics Chapter 14 Electronics MCQ's Test
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Total Questions20
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Time Allowed20
MDCAT Physics Chapter 14 Electronics MCQ's Test
00:00
Question # 1
A diode characteristics curve is a graph plotted between;
Question # 2
In full wave rectification, the output D.C. voltage across the load is obtainedfor
Question # 3
The unit of gain (G) for non-inverting amplifier is
Question # 4
A diode as a rectifier converts:
Question # 5
Inverting amplifier circuits have
Question # 6
In a full wave rectifier:
Question # 7
A non-conducting semiconductor diode is:
Question # 8
The diodes works on
Question # 9
In a full wave rectifier, the diode conducts during
Question # 10
A certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ………
Question # 11
When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a:
Question # 12
A device which convert DC into AC is calleD)
Question # 13
In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is
Question # 14
The method by which only one half of A.C cycle is converted into direct current is called
Question # 15
A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:
Question # 16
A circuit that converts Pulsating DC into smooth DC contain :
Question # 17
The simplest type of rectification known as half wave rectification is obtained by
Question # 18
A PN junction diode cannot be use:
Question # 19
In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:
Question # 20
A pulsating DC can be converted into constant voltage by using
Top Scorers Of MDCAT Physics Chapter 14 Electronics MCQ's Test MCQ`s Test
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A ammara habib 10 - Jul - 2023 00 Min 13 Sec 20/20 -
M Ahmad Anwar 02 - Aug - 2023 01 Min 15 Sec 20/20
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I Ismailkhan Khanlala 20 - Aug - 2023 02 Min 14 Sec 17/20 -
M Main faizan Faizan 29 - Jul - 2023 03 Min 29 Sec 17/20 -
B Bashir Ahmad 03 - Aug - 2023 07 Min 24 Sec 17/20 -
P PUZZLE and INFORMATION 21 - Jul - 2024 03 Min 05 Sec 16/20 -
H hamza abid 04 - Sep - 2023 10 Min 50 Sec 16/20 -
F Fatima 29 - Aug - 2023 04 Min 27 Sec 15/20 -
R Rafia Abbasi 31 - Jul - 2023 06 Min 10 Sec 15/20 -
M Muneeza Khan chadda 14 - Jun - 2024 09 Min 42 Sec 15/20 -
S Shazia Shoukat ali 14 - Jun - 2024 04 Min 22 Sec 14/20 -
S Sufyan Nadeem 08 - Jul - 2023 05 Min 06 Sec 14/20 -
M Mehwish Abdul Sattar 24 - May - 2023 04 Min 37 Sec 13/20 -
F FATIMA ZAFAR 13 - Jul - 2024 06 Min 38 Sec 13/20 -
J Joun Muhammad 05 - Jun - 2023 08 Min 22 Sec 13/20
MCAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A device which convert DC into AC is calleD) |
A. Invertor
B. Generator
C. Rectifier
D. Motor
|
| 2 | When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a: |
A. Conductor
B. Amplifier
C. Oscillator
D. Rectifier
|
| 3 | The efficiency of full wave rectifier is: |
A. 25.6%
B. 81.2%
C. 81.6%
D. 71.2%
|
| 4 | In a full wave rectifier, the diode conducts during |
A. Both halves of the input cycle
B. A portion of the positive half cycle of the input
C. Positive half cycle of the input
D. Positive half cycle of the input
|
| 5 | The junction potential for Germanium is; |
A. 3v
B. 0.3 v
C. 7v
D. 0.7 v
|
| 6 | In full wave rectification by bridge the number of diodes required are |
A. 3
B. 4
C. 2
D. 5
|
| 7 | For a normal AC cycle, during T/2 to T the diode act as: |
A. Open switch
B. full wave rectifier
C. Close switch
D. All are correct
|
| 8 | The simplest type of rectification known as half wave rectification is obtained by |
A. Using a transistor
B. Suppressing the harmonics in A.C. voltage
C. Suppressing half wave of A.C. supply by using diode
D. Using a Coolidge
|
| 9 | Gain of operational amplifier is independent of; |
A. Internal structure
B. External Structure
C. Batteries
D. Potential changes
|
| 10 | The magnitude of potential barrier for Ge is |
A. 0.7 v
B. 0.3 V
C. 7v
D. 3 v
|
Test Questions