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

A device which convert DC into AC is calleD)

Question # 2

In a full wave rectifier:

Question # 3

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

Question # 4

The diode charactristics curve is plot between

Question # 5

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

Question # 6

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

Question # 7

A diode as a rectifier converts:

Question # 8

A diode characteristics curve is a graph plotted between;

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

The diodes works on

Question # 13

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

Question # 14

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

Question # 15

Inverting amplifier circuits have

Question # 16

In a full wave rectifier, the diode conducts during

Question # 17

For a normal AC cycle, during T/2 to T the diode act as:

Question # 18

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

Question # 19

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

Question # 20

The efficiency of half wave rectifier is:

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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 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
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 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
5 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
6 In full wave rectification by bridge the number of diodes required are
A. 3
B. 4
C. 2
D. 5
7 The diodes works on
A. A.C
B. D.C
C. both A and B
D. None of these
8 The efficiency of full wave rectifier is:
A. 25.6%
B. 81.2%
C. 81.6%
D. 71.2%
9 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
10 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

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