MDCAT Physics mcq test with answers for chapter 14 (Electronics)

Question # 1

The unit of gain (G) for non-inverting amplifier is

Ampere A
ohm B
Volt C
None of these D

Question # 2

A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:

Zero A
Infinite B
One C
100 D

Question # 3

The resistance of operational amplifier between inverting and non-inverting terminal is of the order of:

Few Ohms A
Mega Ohms B
Few Kilo Ohms C
Micro Ohms D

Question # 4

In full wave rectification, the output D.C. voltage across the load is obtainedfor

The positive half cycle of input A.C. (C) The complete cycle of input A.C. A
The negative half cycle of input A.C. B
The complete cycle of C
All of the above D

Question # 5

For the same value of resistors the output of non-inverting amplifier compared to the output of inverting amplifier is, (ignoring phase difference)

Greater A
Equal B
Smaller C
Undefined D

Question # 6

A pure semiconductor has:

An infinite resistance at 0^oC) A
A finite resistance which does not depend upon temperature B
A finite resistance which decreases with temperature C
A finite resistance which increase with temperature D

Question # 7

When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a:

Conductor A
Amplifier B
Oscillator C
Rectifier D

Question # 8

A certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ………

100,000 A
100 B
1000 C
101 D

Question # 9

A circuit that converts Pulsating DC into smooth DC contain :

Filter A
Capacitor B
Inductor C
LC circuit D

Question # 10

A pulsating DC can be converted into constant voltage by using

Filter A
Full wave rectifier B
Half wave rectifie C
Bridge rectifier D

Question # 11

A diode as a rectifier converts:

A)c into D)c A
D)c into A)c B
Varying D)c current into constant D)c current C
High voltage into low voltage and vice-versa D

Question # 12

In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is

50 Hz A
100 Hz B
500 Hz C
zero D

Question # 13

For full wave rectification, the minimum number of diodes used is:

1 A
2 B
3 C
4 D

Question # 14

The method by which only one half of A.C cycle is converted into direct current is called

half wave amplification A
half wave rectification B
Full wave rectification C
full wave amplification D

Question # 15

Inverting amplifier circuits have

A very high input impendance A
A very low input impendance B
A low output impendance C
Both A and C D

Question # 16

In full wave rectification by bridge the number of diodes required are

3 A
4 B
2 C
5 D

Question # 17

In a full wave rectifier, the diode conducts during

Both halves of the input cycle A
A portion of the positive half cycle of the input B
Positive half cycle of the input C
Positive half cycle of the input D
Both halves of the input cycle E

Question # 18

The magnitude of potential barrier for Ge is

0.7 v A
0.3 V B
7v C
3 v D

Question # 19

The efficiency of full wave rectifier is:

25.6% A
81.2% B
81.6% C
71.2% D

Question # 20

The diode charactristics curve is plot between

I & t A
V& t B
V& I C
None D

Sr.#	Question	Answer
1	The diode charactristics curve is plot between	A. I & t B. V& t C. V& I D. None
2	In full wave rectification, the output DC voltage across the load is obtained for.	A. The positive half cycle of input AC only B. The negative half cycle of input AC C. The completes cycle of input AC only D. All of the above
3	The method by which only one half of A.C cycle is converted into direct current is called	A. half wave amplification B. half wave rectification C. Full wave rectification D. full wave amplification
4	For full wave rectification, the minimum number of diodes used is:	A. 1 B. 2 C. 3 D. 4
5	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
6	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
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	A pure semiconductor has:	A. An infinite resistance at 0^oC) 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
9	In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is	A. 50 Hz B. 100 Hz C. 500 Hz D. zero
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

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MDCAT Physics Chapter 14 MCQ Test With Answer for (Electronics)

MCQ's Test For MDCAT Physics Chapter 14 Electronics MCQ's Test

MDCAT Physics Chapter 14 Electronics MCQ's Test

The unit of gain (G) for non-inverting amplifier is

A non-inverting amplifier has infinite input resistance then the voltage gain of noninverting amplifier will be:

The resistance of operational amplifier between inverting and non-inverting terminal is of the order of:

In full wave rectification, the output D.C. voltage across the load is obtainedfor

For the same value of resistors the output of non-inverting amplifier compared to the output of inverting amplifier is, (ignoring phase difference)

A pure semiconductor has:

When two semiconductors of p- and n-type are brought into contact, they from a p-n junction which act like a:

A certain noninverting amplifier has R1 of 1 kΩ and R2 of 100 kΩ. The closed-loop voltage gain is ………

A circuit that converts Pulsating DC into smooth DC contain :

A pulsating DC can be converted into constant voltage by using

A diode as a rectifier converts:

In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is

For full wave rectification, the minimum number of diodes used is:

The method by which only one half of A.C cycle is converted into direct current is called

Inverting amplifier circuits have

In full wave rectification by bridge the number of diodes required are

In a full wave rectifier, the diode conducts during

The magnitude of potential barrier for Ge is

The efficiency of full wave rectifier is:

The diode charactristics curve is plot between

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