Question # 1

The junction potential for Germanium is;

Choose an answer

3v

0.3 v

7v

0.7 v

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

Choose an answer

Ampere

ohm

Volt

None of these

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

Choose an answer

1

2

3

4

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

Choose an answer

50 Hz

100 Hz

500 Hz

zero

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

Choose an answer

half wave amplification

half wave rectification

Full wave rectification

full wave amplification

A circuit that converts Pulsating DC into smooth DC contain :

Choose an answer

Filter

Capacitor

Inductor

LC circuit

A device which convert DC into AC is calleD)

Choose an answer

Invertor

Generator

Rectifier

Motor

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

Choose an answer

Using a transistor

Suppressing the harmonics in A.C. voltage

Suppressing half wave of A.C. supply by using diode

Using a Coolidge

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

Choose an answer

Zero

Infinite

One

100

A PN junction diode cannot be use:

Choose an answer

As rectifier

For converting light energy to electrical energy

For getting light radiation

For increasing the amplitude of an ac signal

The diode charactristics curve is plot between

Choose an answer

I & t

V& t

V& I

None

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

Choose an answer

100,000

100

1000

101

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

Choose an answer

Greater

Equal

Smaller

Undefined

The efficiency of full wave rectifier is:

Choose an answer

25.6%

81.2%

81.6%

71.2%

Gain of operational amplifier is independent of;

Choose an answer

Internal structure

External Structure

Batteries

Potential changes

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

Choose an answer

3

4

2

5

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

Choose an answer

Conductor

Amplifier

Oscillator

Rectifier

In a full wave rectifier:

Choose an answer

DC current is twice that of half wave rectifier

DC pulses are twice per cycle that of half wave rectifier

DC voltage is twice that of half wave rectifier

All are correct

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

Choose an answer

25 Hz

70.7 Hz

50 Hz

100 Hz

The power output of a full wave rectifier is:

Choose an answer

Equal to H.W.R

Twice of H.W.R

Half of H.W.R

Four times of H.W.R

More Classes

Other Links

MDCAT Physics Chapter 10 Electronics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer