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

00:00
Question # 1

A diode as a rectifier converts:

Question # 2

The magnitude of potential barrier for Ge is

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

A device which convert DC into AC is calleD)

Question # 7

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

Question # 8

The efficiency of full wave rectifier is:

Question # 9

A PN junction diode cannot be use:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

The efficiency of half wave rectifier is:

Question # 17

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

Question # 18

In a full wave rectifier, the diode conducts during

Question # 19

A diode characteristics curve is a graph plotted between;

Question # 20

The power output of a full wave rectifier is:

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MCAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The resistance of operational amplifier between inverting and non-inverting terminal is of the order of:
A. Few Ohms
B. Mega Ohms
C. Few Kilo Ohms
D. Micro Ohms
2 The efficiency of half wave rectifier is:
A. 25.6%
B. 1.2%
C. 40.6%
D. 66.6%
3 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
4 For full wave rectification, the minimum number of diodes used is:
A. 1
B. 2
C. 3
D. 4
5 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
6 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
7 The unit of gain (G) for non-inverting amplifier is
A. Ampere
B. ohm
C. Volt
D. None of these
8 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
9 In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:
A. 25 Hz
B. 70.7 Hz
C. 50 Hz
D. 100 Hz
10 The efficiency of full wave rectifier is:
A. 25.6%
B. 81.2%
C. 81.6%
D. 71.2%

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