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

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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MDCAT Physics Chapter 14 Electronics MCQ's Test

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Question # 1

A non-conducting semiconductor diode is:

Question # 2

Gain of operational amplifier is independent of;

Question # 3

The efficiency of half wave rectifier is:

Question # 4

A device which convert DC into AC is calleD)

Question # 5

The power output of a full wave rectifier is:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The diode charactristics curve is plot between

Question # 11

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

Question # 12

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

Question # 13

A pure semiconductor has:

Question # 14

The magnitude of potential barrier for Ge is

Question # 15

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

Question # 16

Inverting amplifier circuits have

Question # 17

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

Question # 18

A diode as a rectifier converts:

Question # 19

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

Question # 20

The junction potential for Germanium is;

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MCAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A non-conducting semiconductor diode is:
A. Forward biased
B. Poorly biased
C. Reverse biased
D. None of them
2 The diodes works on
A. A.C
B. D.C
C. both A and B
D. None of these
3 The efficiency of half wave rectifier is:
A. 25.6%
B. 1.2%
C. 40.6%
D. 66.6%
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 circuit that converts Pulsating DC into smooth DC contain :
A. Filter
B. Capacitor
C. Inductor
D. LC circuit
6 A pure semiconductor has:
A. An infinite resistance at 0oC)
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
7 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
8 The junction potential for Germanium is;
A. 3v
B. 0.3 v
C. 7v
D. 0.7 v
9 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
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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