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

Question # 1

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 # 2

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 # 3

The power output of a full wave rectifier is:

Equal to H.W.R A
Twice of H.W.R B
Half of H.W.R C
Four times of H.W.R D

Question # 4

In a full wave rectifier:

DC current is twice that of half wave rectifier A
DC pulses are twice per cycle that of half wave rectifier B
DC voltage is twice that of half wave rectifier C
All are correct D

Question # 5

A PN junction diode cannot be use:

As rectifier A
For converting light energy to electrical energy B
For getting light radiation C
For increasing the amplitude of an ac signal D

Question # 6

Gain of operational amplifier is independent of;

Internal structure A
External Structure B
Batteries C
Potential changes D

Question # 7

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

3 A
4 B
2 C
5 D

Question # 8

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 # 9

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 # 10

The efficiency of full wave rectifier is:

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

Question # 11

A circuit that converts Pulsating DC into smooth DC contain :

Filter A
Capacitor B
Inductor C
LC circuit D

Question # 12

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 # 13

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 # 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

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 # 16

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

1 A
2 B
3 C
4 D

Question # 17

A non-conducting semiconductor diode is:

Forward biased A
Poorly biased B
Reverse biased C
None of them D

Question # 18

The junction potential for Germanium is;

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

Question # 19

A diode characteristics curve is a graph plotted between;

Current and time A
Voltage and time B
Voltage and current C
Forward voltage and reverse current D

Question # 20

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

Sr.#	Question	Answer
1	A circuit that converts Pulsating DC into smooth DC contain :	A. Filter B. Capacitor C. Inductor D. LC circuit
2	For the same value of resistors the output of non-inverting amplifier compared to the output of inverting amplifier is, (ignoring phase difference)	A. Greater B. Equal C. Smaller D. Undefined
3	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
4	A diode characteristics curve is a graph plotted between;	A. Current and time B. Voltage and time C. Voltage and current D. Forward voltage and reverse current
5	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
6	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
7	For full wave rectification, the minimum number of diodes used is:	A. 1 B. 2 C. 3 D. 4
8	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
9	Gain of operational amplifier is independent of;	A. Internal structure B. External Structure C. Batteries D. Potential changes
10	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

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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

In a full wave rectifier, the diode conducts during

A diode as a rectifier converts:

The power output of a full wave rectifier is:

In a full wave rectifier:

A PN junction diode cannot be use:

Gain of operational amplifier is independent of;

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

A pure semiconductor has:

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

The efficiency of full wave rectifier is:

A circuit that converts Pulsating DC into smooth DC contain :

Inverting amplifier circuits have

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

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

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

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

A non-conducting semiconductor diode is:

The junction potential for Germanium is;

A diode characteristics curve is a graph plotted between;

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

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