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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 certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ………
Question # 2
In a full wave rectifier, the diode conducts during
Question # 3
A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:
Question # 4
Gain of operational amplifier is independent of;
Question # 5
The resistance of operational amplifier between inverting and non-inverting terminal is of the order of:
Question # 6
In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is
Question # 7
In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:
Question # 8
For full wave rectification, the minimum number of diodes used is:
Question # 9
The efficiency of full wave rectifier is:
Question # 10
The method by which only one half of A.C cycle is converted into direct current is called
Question # 11
A circuit that converts Pulsating DC into smooth DC contain :
Question # 12
The unit of gain (G) for non-inverting amplifier is
Question # 13
Inverting amplifier circuits have
Question # 14
In a full wave rectifier:
Question # 15
A pulsating DC can be converted into constant voltage by using
Question # 16
The junction potential for Germanium is;
Question # 17
A pure semiconductor has:
Question # 18
A diode characteristics curve is a graph plotted between;
Question # 19
The simplest type of rectification known as half wave rectification is obtained by
Question # 20
The power output of a full wave rectifier is:
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MCAT Physics Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | The resistance of operational amplifier between inverting and non-inverting terminal is of the order of: |
A. Few Ohms
B. Mega Ohms
C. Few Kilo Ohms
D. Micro Ohms
|
| 3 | In a full wave rectifier: |
A. DC current is twice that of half wave rectifier
B. DC pulses are twice per cycle that of half wave rectifier
C. DC voltage is twice that of half wave rectifier
D. All are correct
|
| 4 | The efficiency of half wave rectifier is: |
A. 25.6%
B. 1.2%
C. 40.6%
D. 66.6%
|
| 5 | The power output of a full wave rectifier is: |
A. Equal to H.W.R
B. Twice of H.W.R
C. Half of H.W.R
D. Four times of H.W.R
|
| 6 | 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
|
| 7 | A diode as a rectifier converts: |
A. A)c into D)c
B. D)c into A)c
C. Varying D)c current into constant D)c current
D. High voltage into low voltage and vice-versa
|
| 8 | The magnitude of potential barrier for Ge is |
A. 0.7 v
B. 0.3 V
C. 7v
D. 3 v
|
| 9 | A certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ……… |
A. 100,000
B. 100
C. 1000
D. 101
|
| 10 | A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be: |
A. Zero
B. Infinite
C. One
D. 100
|
Test Questions