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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
The method by which only one half of A.C cycle is converted into direct current is called
Question # 2
The efficiency of full wave rectifier is:
Question # 3
The unit of gain (G) for non-inverting amplifier is
Question # 4
The power output of a full wave rectifier is:
Question # 5
The efficiency of half wave rectifier is:
Question # 6
When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a:
Question # 7
In a full wave rectifier, the diode conducts during
Question # 8
Gain of operational amplifier is independent of;
Question # 9
A pulsating DC can be converted into constant voltage by using
Question # 10
A device which convert DC into AC is calleD)
Question # 11
In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is
Question # 12
A circuit that converts Pulsating DC into smooth DC contain :
Question # 13
A diode characteristics curve is a graph plotted between;
Question # 14
In full wave rectification, the output D.C. voltage across the load is obtainedfor
Question # 15
A pure semiconductor has:
Question # 16
A diode as a rectifier converts:
Question # 17
A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:
Question # 18
For a normal AC cycle, during T/2 to T the diode act as:
Question # 19
In a full wave rectifier:
Question # 20
The junction potential for Germanium is;
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M Ahmad Anwar 02 - Aug - 2023 01 Min 15 Sec 20/20
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J Joun Muhammad 05 - Jun - 2023 08 Min 22 Sec 13/20
MCAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The unit of gain (G) for non-inverting amplifier is |
A. Ampere
B. ohm
C. Volt
D. None of these
|
| 2 | The efficiency of full wave rectifier is: |
A. 25.6%
B. 81.2%
C. 81.6%
D. 71.2%
|
| 3 | A PN junction diode cannot be use: |
A. As rectifier
B. For converting light energy to electrical energy
C. For getting light radiation
D. For increasing the amplitude of an ac signal
|
| 4 | 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
|
| 5 | In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be: |
A. 25 Hz
B. 70.7 Hz
C. 50 Hz
D. 100 Hz
|
| 6 | In full wave rectification by bridge the number of diodes required are |
A. 3
B. 4
C. 2
D. 5
|
| 7 | Inverting amplifier circuits have |
A. A very high input impendance
B. A very low input impendance
C. A low output impendance
D. Both A and C
|
| 8 | A non-conducting semiconductor diode is: |
A. Forward biased
B. Poorly biased
C. Reverse biased
D. None of them
|
| 9 | A pulsating DC can be converted into constant voltage by using |
A. Filter
B. Full wave rectifier
C. Half wave rectifie
D. Bridge rectifier
|
| 10 | A pure semiconductor has: |
A. An infinite resistance at 0oC)
B. A finite resistance which does not depend upon temperature
C. A finite resistance which decreases with temperature
D. A finite resistance which increase with temperature
|
Test Questions