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

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

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MDCAT Physics Chapter 14 Electronics MCQ's Test

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

The diode charactristics curve is plot between

Question # 5

A pure semiconductor has:

Question # 6

A circuit that converts Pulsating DC into smooth DC contain :

Question # 7

Gain of operational amplifier is independent of;

Question # 8

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

Question # 9

A pulsating DC can be converted into constant voltage by using

Question # 10

In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:

Question # 11

In full wave rectification, the output DC voltage across the load is obtained for.

Question # 12

The efficiency of half wave rectifier is:

Question # 13

A device which convert DC into AC is calleD)

Question # 14

The diodes works on

Question # 15

The efficiency of full wave rectifier is:

Question # 16

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

Question # 17

A diode as a rectifier converts:

Question # 18

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

Question # 19

The simplest type of rectification known as half wave rectification is obtained by

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)

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MCAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The diodes works on
A. A.C
B. D.C
C. both A and B
D. None of these
3 The diode charactristics curve is plot between
A. I & t
B. V& t
C. V& I
D. None
4 Gain of operational amplifier is independent of;
A. Internal structure
B. External Structure
C. Batteries
D. Potential changes
5 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
6 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
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 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
9 In full wave rectification, the output D.C. voltage across the load is obtainedfor
A. The positive half cycle of input A.C. (C) The complete cycle of input A.C.
B. The negative half cycle of input A.C.
C. The complete cycle of
D. All of the above
10 For full wave rectification, the minimum number of diodes used is:
A. 1
B. 2
C. 3
D. 4

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